Croozer Designs 737 Single Child 3 in 1 Bicycle Trailer, Swivel Wheel, and Fixed Wheel Stroller (Green/Sand/Black Single child carrier with stroller, jogger, and bicycle trailer in one Features comfy bucket seat and roomy storage space Ultra-quick flat-folding mechanism allows easy, fast storage Holds up to 75 pounds; backed by limited lifetime warranty Includes chassis, bicycle hitch arm, two axle mounted hitches, safety flag, eight-inch stroller wheel, 16-inch wheel, and two 20-inch wheels