Polaris Burandt Adventure Tunnel Bag - Small 2880969 FITS: All Pro-RMK, SKS, RMK Assault, Switchback Assault, RMK, Indy 144, Voyageur Lock & Ride system features over-center locking design for easier installation & improved locking strength Exterior compression molded semi-rigid shell keeps its shape whether bag is empty or full, offers a sealed environment to prevent water intrusion and features a zipperless design Large 2" buckles provide easy access to gear with your gloves on from either side of the sled & allows quick access to the top mesh compartment featuring YKK zippers Rubber bottom material ensures the tunnel protection