Electric STEM Building Blocks DIY Educational Toy Interlocking Gears Motorized Construction Kit Science Learning for Kids

Material: ABS Power Supply: 2x AAA Battery Note: 1. Drill and motor are not included in the Entry-leve . 2. Battery is not included in the package.

Feature: 1. The blocks can be freely combined to develop children's imagination, hundreds of shapes waiting to be built. 2. The surface of blocks is rounded and smooth without burrs, delicate and does not hurt hands.

Box Size: Entry-level- 19x13x16.5cm Basic-21x13x19cm Enhanced-26x15x22cm Advanced-28.5x15x25.5cm

Number of blocks: Entry-level-114pcs Basic-125pcs Enhanced-234pcs Advanced-275pcs