Tail roller shaft, also called rear roller shaft, both ends with groove for assembling with rear roller bracket. It's generally used with rear roller and rear roller bracket to form a kit. This kit is used to be assembled on the tail of the truck hoist to help with rolling when cable is pulling a container.Rear roller kit can also minimize damage to customer's property when the hoist is raised and loading or unloading the container, allowing the tail to get in touch with the ground and reduce drop distance.