OPPI STAK Sensory Stacking Toy

Meet STAK Sensory Stacking Toy—the stack that teaches. Each soft silicone piece invites small hands to grip, sort, and balance. Little by little, children build fine motor control, hand-eye coordination, and the confidence to try again.

Subtle guiding lines help pieces meet and stay. That tiny bit of support means more “I did it!” and fewer toppled towers. Along the way, kids learn to count, name colors and shapes, and compare sizes—all through open-ended play.

STAK is non-toxic, easy to rinse, and made to go wherever you play: bath, beach, or playroom. Designed in France with child development specialists, it’s play you can trust—and keep coming back to as skills grow.

What’s in the Box?

8 soft, non-toxic silicone stacking pieces
Quick play ideas booklet

Key Features (Benefits First)

Skill-rich play: builds grip strength, coordination, and early problem-solving.
Guided stacking: discrete lines help align pieces for satisfying builds.
Early math & thinking: counting, size ordering, shapes, colors.
Water & sand ready: great in the bath and at the beach.
Thoughtful materials: durable, non-toxic silicone; easy to clean.
Expert-informed: created in France with child development specialists.

Learning Outcomes (Ages 1 and Up)

Fine motor skills & bilateral coordination
Hand-eye coordination and controlled movements
Focus, persistence, and independence
Early math language: color, shape, size, sequence

Specs & Safety

Age: 12 months and up
Materials: soft silicone, non-toxic, easy-clean
Use: indoor, bath, beach
Brand: OPPI (France)

How to Play with the STAK Sensory Stacking Toy

Big to small: order by size, then build the tallest tower you can.
Color hunt: sort by color and count each stack aloud.
Wobbly challenge: offset pieces and explore balance.
Bath lab: rinse, stick, stack, and pour.
Beach prints: press shapes into wet sand and compare outlines.

FAQs

Is it safe for teething toddlers?
Yes. The pieces are soft silicone and non-toxic. edu2 recommends supervision for all toddler play.

Can it be used in the bath or outdoors?
Absolutely. STAK is made for bath and beach play and rinses clean.

What skills does it support?
Fine motor control, coordination, early math (counting, size/shape), and focus.

Who designed it?
OPPI developed STAK in France with child development specialists.