2-Tier “Rail Mount” Provides Upper Level Hauling, Leaving the Floor Wide Open. Result, a 60% Increase in Hauling Capacity! Installs on Any Cart-Sled 26" to 44". Protects Expensive Ice Rods, Electronics, Bait Coolers, and More. Effective Storage for Chainsaws, Power Tools and More. Constructed of HDTP Polyethylene, Lockable. Easy On-Off With a Simple “Thumb Knob”. Kit Includes RailMount and Cargo Trunk [L].