CAT tipper trailer attaches to CAT backhoe tractor. Recommended Use: Attaches to Cat backhoe tractor, Material: Resin and rubber tires, Assembly Required: Partial assembly required, Dimensions L x W x H (in.): 24 x 15 1/2 x 15 1/2 Safety locking system Oversized resin tires have long-lasting rubberized traction tread strip Attaches to CAT backhoe tractor, Item# 45351 or 199629, sold separately Assembly required