Toys That Teach: Gearjits building kits combine traditional building with principles found in leading STEM toys. You will exercise your fine motor skills, creativity, perseverance and dexterity. DIY Solar System Kit: Build a 14"" tall solar system model from beautiful, laser-cut wood pieces, with no glue and no tools! Pieces slot together to make a sturdy finished model for display. (Not meant for reassembly.) Build Together: Enjoy this screen-free way for kids to connect with their parents or grandparents. It’s a highly satisfying, educational experience for both teens and adults, as well as a perfect bonding project to do with older children. Working Solar System Model: Constructing this mechanical model of the solar system is only half the fun. Once the pieces of the orrery are in place, turn the crank to activate the LED light in the sun and send the planets orbiting at their correct speeds. Includes 7 wood sheets with 316 precut pieces, 8 painted wooden planets, 44 screws, 11 steel shafts, 31 nuts, 40 washers, 46 plastic sleeves, 8 rubber sleeves, screwdriver, sandpaper, wax, electric generator and LED light, and illustrated instructions. (Ages 12 and up)