1、Adjustable U Bolt: This U bolt kit is designed to fit trailer axles, featuring fully adjustable U bolts that meet your specific requirements, each bolt support more than 150 pounds, ensuring perfect fitting for heavy duty uses. 2、Steel Material for Enhanced Durability: Made from steel, which is deformation or rust resistant, ideally suited for marine trailers in both saltwater and freshwater environments. 3、Versatile Applications: The U bolt kit can be used for boats, trailers, and pontoons, provides solution for securing or connecting locking components on rectangular wood and metal objects. 4、Great for Marine Trailer Axles: Designed for use with boat trailer axle leaf springs, this U bolt kit provides reliable and adjustable mounting solutions for seafaring vehicles. 5、Complete Kit: The 2 set u bolt kit offers all the necessary hardware for mounting axle leaf springs on your marine trailer or car, resulting in ease and convenience of use.