RTV400, RTV500 & RTV520 Seat covers are made from 600 denier PVC backed Polyester and use elastic around outer edge to attach under seat bottom and seat back. Straps are used under seat bottom and back to pull covers tight for a factory fit and finish. Seat Cover offers great protection to factory seat bottom and backrest with easy installation and no tools needed. Comes with all necessary mounting items and instructions. Fits RTV400, RTV500 & RTV520. MADE IN USA!