OT-reviewed Parent-tested

Chewelry Comparison Chart: Chew Strength & Materials

Every chew tool decision on one chart — chew strength tiers by what your child currently destroys, material safety standards, format comparison, and age guidance. Stop buying chews that last a fortnight.

Written byMaya Ellison

Medically reviewed byDana Whitfield, OTR/L

Last reviewed August 6, 2026 · every clinical claim checked by a licensed pediatric OT

Verified accurate as of August 6, 2026

Chew strength tiers: match the tool to the chewer

The single most common reason a chew necklace gets thrown away is that it was the wrong hardness. A mild chew given to an aggressive chewer is a choking hazard — the child bites through it. A firm chew given to a mild chewer is simply ignored. Use this chart to identify your child's tier before you buy anything.

Chew strength tiers matched to observable behaviour
Tier	Your child chews…	Hardness	Shapes that last	Replace every
Mild	Sleeves, collars, hair, soft fabric	Soft, flexible silicone (low durometer)	Flat pendants, thin tubes, textured discs	2–3 months
Moderate	Pencils, erasers, straws, toy corners	Medium-firm silicone (mid durometer)	Thick tubes, ribbed bars, chunky pendants	1–2 months
Aggressive	Through pencils, plastic toys, furniture	Firm, high-durometer silicone or nylon	Solid bars, brick shapes, thick knobbed chews	2–6 weeks

Material safety compared

The material determines whether the chew is safe, how long it lasts, and how it feels in the mouth. Not all silicone is equal — compliance standards matter.

Chew tool materials ranked by safety and durability
Material	Safety standard	Durability	Feel	Best for	Watch out for
Food-grade silicone (FDA compliant)	FDA 21 CFR 177.2600	High — 1–3 months depending on tier	Smooth, slightly flexible, odourless	Most children. The default recommendation.	Check for stated compliance, not just the word 'safe'.
Food-grade silicone (LFGB compliant)	EU LFGB (stricter than FDA)	High — 1–3 months	Same as FDA silicone, often softer feel	Families who prefer European safety standards	More expensive; harder to find in US retailers
Nylon	Food-contact safe, BPA-free	Very high — 2–6 months	Hard, smooth, no flexibility	Aggressive chewers who destroy silicone	Inspect for shredded fibres. Not for mild chewers.
Silicone-coated cord	Food-grade coating	Moderate — cord wears with chewing	Firm, rope-like texture	Children who prefer a different texture to pendant chews	Cord must have a genuine breakaway clasp.
Thermoplastic elastomer (TPE)	Varies — check compliance	Moderate	Rubbery, flexible	Budget options	Less durable than silicone. Check for phthalates and BPA.

Chew tool formats compared

A chew necklace is the default because it is always attached to the child, but it is not always the right shape. Use this chart to pick the format before you pick the brand.

Chew tool formats by use case and age
Format	Best for	Age	Pros	Cons
Chew necklace (pendant on breakaway cord)	School-age kids who chew collars; always to hand	3+ years	Always available. Hands-free. Socially discreet.	Cord must genuinely break away. Not for under-3s.
Chew bracelet / bangle	Kids who dislike anything at the neck; discreet in class	3+ years	No neck cord. Looks like a watch or bracelet.	Slides off wrists easily. Gets lost.
Handheld chew (P, Q, brick shapes)	Under-3s and aggressive chewers needing back-molar input	6 months+	Safe for babies. Reaches back molars. No cord risk.	Needs a pouch. Adult must keep track of it.
Chewable pencil topper	Pencil chewers, homework and desk work only	3+ years	Protects pencils. Stays on the desk.	Small parts once bitten through. Inspect every few days.
Chewable jewellery (ring, pendant look)	Older children and teens who want discretion	5+ years	Looks like normal jewellery. No 'special needs' stigma.	Often smaller surface area. May not suit aggressive chewers.

Age guidance at a glance

Safe chew tool options by age
Age	Safe formats	Avoid	Supervision
6–18 months	Handheld teether-style chews, silicone bib beads (short cord)	Necklace-style chews, small parts, pencil toppers	Direct supervision at all times
18 months–3 years	Handheld chews, short-cord necklaces with breakaway clasp	Long cords, bracelet chews (wrist too small)	Close supervision; inspect before each use
3–6 years	Necklace with breakaway cord, handheld chews, pencil toppers	Bracelet chews (still lose them), aggressive-tier nylon (too hard for emerging teeth)	Supervise initially; teach child to hand to adult if it breaks
6–12 years	All formats. Necklace is the school-compatible default.	None, if matched to chew strength	Weekly inspection. Child should know to report damage.
12+ years	All formats. Discreet jewellery-style chews for teens.	None, if matched to chew strength	Self-inspection. Replace on schedule.

Safety checklist before every use

Pre-use safety check for chew tools
Check	What to look for	Action if failed
Breakaway clasp	Cord releases under firm pull (test it yourself)	Do not use. Replace the cord or the chew.
Surface integrity	No tears, punctures, or thin spots	Discard immediately. Do not let the child use it.
Attachment security	Pendant is firmly attached to cord; no wobble or gap	Discard. A detached pendant is a choking hazard.
Material compliance	Stated FDA or LFGB compliance on packaging	Do not use. Return to retailer.
Chew strength match	Tier matches what the child currently chews	Replace with correct tier before next use.

Cite or reproduce this chart

Free for parents, schools, therapists, and journalists to reference, with a credit line and a link back to the canonical page.

Citation

Sensory Steps. "Chewelry Comparison Chart: Chew Strength, Material, and Format Compared." Reviewed by Dana Whitfield, OTR/L. https://sensorysteps.site/chewelry-comparison-chart

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Frequently asked questions

What is a chewelry comparison chart?

A chewelry comparison chart is a reference table that matches chew tools to chew strength, material, format, and age. It helps parents pick the right hardness, shape, and safety features for their child's chewing needs — rather than guessing and buying multiple chews that get destroyed within a week.

How do I know what chew level my child needs?

Watch what they currently chew. Shirt collars and pencil erasers indicate mild. Pencils, straws, and toy corners indicate moderate. Bitten-through pencils, plastic toys, or furniture indicate aggressive. If you are unsure between two tiers, buy the harder one — a chew that is too firm is simply ignored, not dangerous.

What is the safest material for chewelry?

Food-grade silicone is the safest default. It is odourless, BPA-free, latex-free, phthalate-free, and PVC-free. Look for a stated FDA or LFGB compliance standard, not just the word 'safe'. Nylon is used for aggressive-tier chews and is extremely durable, but inspect for shredded fibres. Avoid any chew that does not state its material compliance.

Are chew necklaces safe for school?

Most schools allow chew necklaces when they are framed as a regulation tool rather than jewellery. Ask in writing for it to be named in your child's IEP or 504 plan alongside a breakaway cord requirement. Schools rarely refuse when the request is specific and safety-conscious.

How often should chewelry be replaced?

Inspect weekly and replace at the first sign of a tear, puncture, or piece that can be pulled off. Even undamaged chews are usually replaced every 1–3 months with a heavy user. Keep a spare so a broken chew never leaves your child without a safe option.

Can I use this chart in my own article or handout?

Yes. The chart is free to reference and reproduce for parents, schools, and therapists with a credit line and a link back to this page.

Where to go next

For the full chewelry guide — brand picks, cleaning routines, and school accommodation letters — see chewelry for kids. For oral input as part of a broader sensory diet, see the sensory diet schedule. To understand the oral sensory system, read sensory seeking vs avoiding.

Keep reading

Start with the sensory tools by sensory system guide, then go deeper: