Marble Run; Marble Squad Inserts Bearing 8x12x3

Bearing 8x12x3

Hobby Knife

19 inch unMounted Diameter

- The Axial 2017 Wrangler Light Kit and 5" Light Bar kit is waterproof

RS-550 High Torque Brushed Motor (By Mabuchi Motor)

Marble Run; Marble Squad Inserts Bearing 8x12x3Robotime ROKR Trapdoors Marble Run set LG502 is a well designed 3D wooden puzzle toy based on great human engineering. It combines the beauty of science and machines, involving so many small gadgets. Build the set and crank the handle, watch marbles run crazy down each trapdoor, slope, and twist turns. It will bring you a super fun building & playing experience. *Due to customs policy wax. glue or battery may not be included in packages. TRACK