[Upgrade double-sided box]: This electric drill puzzle comes with 200 pieces. Brand new upgrade from a single-sided console to a double-sided console. Double the space and get double happiness. Your children can use electric drills and screwdrivers to assemble the board to the basic grid to build 2D and 3D crafts. Play to discover, build and learn for hours.[Develop a Creative Mind]: By giving children a fun construction kit toy to increase their participation in science, technology, engineering and mathematics, it can help children develop fine motor, color cognition, teamwork skills, and artistic cognition. Sensory, cognitive ability, hands-on ability, imagination and creativity.[200Pcs construction kit]: includes two detachable drill bits, reversible electric drill (requires 2 AA batteries, not included), large pieces of plastic nuts and bolts, screwdrivers, screws, wrenches, various styles of instructions, A portable design suitcase that can be operated on both sides. The large-capacity storage box can be used to store all small items after playing, and it is easy to carry with you![Safe and high-quality materials]: Your child's safety is very important to us. Our educational toy construction tool kit is made of high-quality and non-toxic ABS plastic.