
ThinkPlay Gearphun Junior (300 pieces)
ThinkPlay Gearphun Junior adds gears, cranks, and chains to classic building fun—300 bright pieces that get kids turning, testing, and tinkering like real junior engineers.
$90
Build it. Turn it. Watch it move. ThinkPlay Gearphun Junior adds working gears to multi-direction building, so your child isn’t just stacking—they’re creating motion. Pieces connect up, sideways, and at angles, then gears, cranks, and chains bring the whole model to life.
Your child builds a crane, a monkey, a helicopter—then turns a handle and sees what works, what slips, and what needs adjusting. That cause-and-effect loop is where the learning happens.
The included instruction sheets start simple and build in complexity, so your child gains confidence before moving into more involved, gear-driven designs. With about 300 pieces, there’s enough variety to keep ideas moving.
As they build, hand strength, coordination, sequencing, and problem-solving develop naturally. Gears introduce early mechanics without needing explanation.
The pieces are durable and washable. They also connect with other ThinkPlay sets for larger builds.
Colors may vary from the guides. That’s part of the process.
A set that turns building into motion—and keeps kids creating a little longer.




