robotime diy marble run game 3d wooden puzzle gear drive waterwheel coaster model building kit toys for children lg501 y200414

package contain: plywood,english instructions, other accessorieswithout wax. 1. as wax is forbbiden on international shipping,we have to take it out. 2. the wax is used to make the gear move smoothly. it is not necessary, you can dont use it or use candle to replace.