This PicassoTiles engineering toy kit comes with an idea book to enable children to construct over 50 building designs with 16 exploded step by step instructions. Be an engineer, architect or designer. This construction set offers open-ended possibilities to nurture STEM skills, children creativity, intelligence, promote problem solving abilities, logical thinking, improve hand-eye coordination, gain strong sense of geometry and stay focused by playing. Featuring an electric power drill, wheels, anchors, screw bolt, wrenches and clickable mechanic ratchet to allow kids to use imaginations to build their own masterpiece and transform from 2D structural design to 3D creations. No limitations, scalable to build as big as desired by adding more pieces. Details: Assorted colors, shapes and sizes 14.5" x 11" packaging size 250 pieces Functional power drill (batteries required, not included)m, storage carry box and idea book included Nontoxic, BPA free, lead free and child safe materials Build more than 50 creative designs Suitable for ages 3 and up