The Adapter Kit from Railblaza allows you to make any item you want compatible with all Railblaza mounting bases. The washers provided give your accessories the ability to swivel a complete 360 degrees, allowing you to adjust your gear on the fly! This kit is sold in pairs and comes complete with stainless steel mounting hardware. Allows you to mount any gear to Railblaza mounting bases, Washers allow for 360 degree movement, Sold in pairs, Includes mounting hardware, mounting base NOT included, Model Year: 2019, Product ID: 430563, Model Number: RBADAPT, GTIN: 0856154004339