Dog Bike Trailer, 100 lb Capacity Folding Pet Bicycle Carrier with Quick Release Wheels, Blue gives shoppers a pet carrier for bicycle towing. The trailer design lets compatible bicycles tow a pet carrier behind the bike. The carrier supports pets up to 100 lb / 45 kg according to the listed load capacity. The 31.9 x 22 x 24.4 in compartment gives dogs a defined riding space. The frame folds to 31.89 x 22.44 x 7.68 in for storage between rides. A universal bicycle coupler is listed for compatible 22 to 28 in bicycle wheels. Materials include carbon steel, 600D Oxford fabric and Pp, with listed product weight 27.78 lb.