It is aftermarket parts used for , Wide Glide, Street Bob, Roadking, Fatbob, Streetbob, Softail, Dyna, Street Glide, Road Glide, Ultra Glide, Touring 1996-2016 and other model with 1/4inch-20 thread Knurled Sides for and Quick Release, No Tool Required to Install and Remove Thread type is 1/4inch-20, Replaces the Standard Seat Bolt Mounting Rear Seat to Top , Not Work with Solo Seats or Side Mount Seats High Quality Billet 6061 Aluminum with Chrome Finish Note: Please check the existing thread type on your Seat Bolt first to confirm that this product be compatible. A very small number of models use 1/4inch-28 which 't work with this seat bolt. colour: Silver Material: Aluminum Package Contents: 1 * chrome seat bolt Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.