Malone Xpress TRX Scupper Sit-On-Top Kayak Cart - Malone design Malone's ground transport products with the idea that portage from the vehicle to the water should be as effortless as possibleThe Malone Xpress TRX Scupper Sit-On-Top Kayak Cart feature TRX wheels with push button release, on-board straps and marine grade aluminum tubing.