Glide over sand, gravel, and grass with these 13"" Beach Balloon Wheels, designed as replacement sand tires for kayak dollies, canoe carts, and beach buggies. Made from robust Tpu, these low-pressure (2-3 Psi) balloon tires offer superior flotation and smooth rolling, preventing sinking or getting stuck in soft terrain. Each wheel inflates from 11.8"" x 5.9"" to 13"" x 7.1"" using the included hand air pump, making setup quick and effortless. With a 0.9"" hub diameter and 121 lbs (55 kg) load capacity per pair, they re ideal for hauling beach umbrellas, folding chairs, coolers, and gear on your next beach day, picnic, or camping trip.