Rage Powersports PT-20304-B Blue 2-in-1 Pull-Behind Dog Bike Carrier Bicycle Pet Trailer,1 Pack Pet trailer designed for use as either a pull-behind bike trailer or push stroller Multiple mesh-vented windows for maximum airflow and pet visibility (2) Large 20" rear wheels, and (1) 12" front wheel for sidewalks, pavement, pebble trails, and short grassy areas Universal style hitch works with most 24" to 28" bikes Maximum capacities: 130 lb. as pet trailer, or 85 lb. as pet stroller (check cabin dimensions to ensure pets will fit)