Dog Bike Trailer, Supports up to 45 kg, Pet Cart Bicycle Carrier for Small & Large Dogs, Easy Folding Frame with Quick Release Wheel, Universal Bicycle Coupler, Reflector, Flag, Internal LeashProduct Features Universal Coupler for Most Adult Bikes This dog bike trailer easily attaches to 22 28 inch rear wheel bicycles with the included couplerquick to set up, stable to tow Spacious & Comfortable Cabin With a 31. 9 x 21. 9 x 25. 2 in interior, the pet cart bicycle carrier's cabin provides plenty of room for medium to large dogs. Pets can lie down or turn around comfortably, and the rear door ensures easy entry and exit Weather Protection &