1Fitment: 2000lbs trailer hub kit is fit for 1in and 1?1/16in Cargo Boat Trailer Spindle, please confirm whether your model is applicable before buying. 2Stable Performance: Trailer hub kit ensures that the trailer does not wobble or shake during driving, maintaining a stable connection between the trailer and the tractor. 3High Load Carrying: Trailer hub is able to withstand the pressure of high loads and support the weight of the trailer stably, providing you with a safe towing experience. 4Robust Quality: Trailer hubs use premium metals and advanced manufacturing processes, able to withstand long periods of use and various challenges. 5Simple Installation: The trailer hub kit is designed for quick installation and does not require complex tools and expertise, making it easy to install and use.