CALIBER FLEX-GLIDES LOW AND FLEX-GLIDES HIGH. This product assists in guiding the snowmobile off your trailer and onto the ramp of a V-Front trailer. Flex-Glides High and Low can be combined to complete enclosed V-Front trailers. Flex-Glides are designed to adjust to fit any enclosed or open V-Front trailer. Protect your trailer as well as your snowmobiles skis from unnecessary damage. Made of high quality HPDE plastic for durability. Sold in sets of 8 with stainless steel fasteners. Hinged for easy installation. Interlocking capacity. Low Profile-8 piece kit. For more information on this product check out this video.