1Aluminum Alloy Rollers: Trailer tailgate lift assist roller is made of 6061 T6 aluminum alloy, rustproof and rugged, ensuring long lasting performance. 2Complete Set: Includes 2 X Rollers, 2 X 1/4in Clevis Pins, 4 X 1/4in Flat Washers, and 2 X 1/4in Locking Rings, ooller overall length is 13/4in, roller diameter is 1in. 3Renovation Ready: This trailer tailgate lift assist rollers kit is suitable for replacement projects, making it ideal for refurbishing applications. 4Enhanced Flexibility: Replace your trailer gate's auxiliary roller parts if they are stiff or jammed, ensuring smooth operation and quick problem resolution. 5Versatile Compatibility: Designed to replace damaged or worn out rollers on trailer lift assist devices, compatible with for GL1 lift assist trailers and easy lift gate. 1 x Tailgate Lift Assist RollerKit(10pcs in Total)