Paddling Magazine's 2018 Winner in the Best Transport/Storage/Launching category, the Wilderness Systems Heavy Kayak Cart can handle big loads and is well-suited to moving fishing kayaks and angler gear. Engineered to transport the heaviest kayaks up to 450 pounds Large 12 inch diameter airless wheels never go flat and roll over rough terrain smoothly Bunker bar frame adjustable width prevents the kayak from twisting and slipping sideways two height options high for odd shaped hulls that would usually rub on cart wheels, low for a lower center of gravity to prevent tip overs. no scupper posts prevent damage to the scupper holes of the kayak constructed of marine-grade, high-strength, heat-treated aluminum alloy for superior strength Two included security straps prevent the kayak from slipping Easy to load and unload the kayak no kickstands or scupper posts required Collapsible and storable within large kayak hatches Large balloon style beach wheels (sold separately) can be swapped on the same frame note: carrying capacity of cart with beach wheels installed is 330lbs