Snap Circuits 3D M.E.G. uses building pieces with snaps to make realistic, 3-D circuits like those found in homes and electronic equipment. Contains "stabilizers" for building amazing 3D structures. Includes over 60 parts including: 3D rotating snaps, unique two-sided base grid with thru snaps, rotating mirror ball, multiple sized gears, rotating LED lights, fiber optic tree and so much more! Builds over 160 projects for hours of educational fun! Uses four AA batteries (not included).• Snap Circuits 3D M.E.G. uses building pieces with snaps to make realistic, 3-D circuits like those found in homes and electronic equipment• Perfect for STEAM learning• Includes 60 parts and user manual