Fingertip Gyro Sprocket 16 Precision Parts Kit gift Hard and not brittle

Hard and not brittle

Changing the dirction of the train by adjusting the chimney

It can be charged via USB or natural light

The long front closure means it's extra secure and does not sit like a hard lump on your back

🎓Unleash your children's inner creativity and imagination with this Electric Drill Puzzle toy

Fingertip Gyro Sprocket 16 Precision Parts Kit gift Hard and not brittleStay focused, reduce stress, release inner creativity and imagination. 16 precision parts, enjoy the fun of DIY with children! Easy To Carry, Small, Simple, Discrete and Fun, also effective for Focus and Deep Thought. Perfect Hand Spinners gifts and size suitable for Adults and kids. Ergonomic curved shape design for hand comfort and long term usage. Simply flick and spin for hours with one or two hands. Parameter: Size: 36x60mm Material: Stainless