Rock-a-Stack

The canonical first stacker.

Compliance-stated
Product photo — Rock-a-Stack (Fisher-Price).

Fisher-Price · Model GRF09 · UPC 887961902242

— The receipt, itemized —
DocumentationMattel brand safety statement (no per-item document published)
Standard"Meet or exceed all applicable standards" (Mattel Safe Start page) — no standard named for this item — brand-stated
LabNot named — brand-stated
ScopeBrand-wide (Mattel products generally); the Rock-a-Stack product page contains no safety or compliance wording — brand-stated
Brand page

At Mattel (manufacturer).

Why it’s on the list

Five colorful rings on a wibbly-wobbly rocker base: grasp, then stack biggest to smallest. Made from plant-based materials (minimum 90% ethanol from sugar cane), in FSC-certified packaging.

What the receipt means

Compliance-stated The maker says this product complies. No test paperwork for this item is published.

Mattel states safety is its "highest priority" and that products "meet or exceed all applicable standards." Source: https://shop.mattel.com/pages/safe-start.

What's missing: no standard named for this item, no lab named, no per-item document or test report, and no material-safety claim specific to GRF09.

The Rock-a-Stack product page itself contains no safety or compliance wording.

Product details

TypeStacking rings
Age6 months+
MaterialPlant-based plastic
Pieces5 rings + base
CareWipe clean
Price~$8
Date addedOct 24, 2026

Retire when

A ring cracks or the base stops rocking.

Keep exploring

Every field on this page (facts, receipt, buy line, retire rule) is rendered from the same product record that feeds the list and brand pages. Prices approximate, from October 2026 research; verify at purchase.