Large Red and Blue Pet Trailer Bike Genuine Factory OEM service available Steel Structure Easy converstion between trailer and stroller 20'' rear wheels-quick release 12" front wheel Front and back zipped door Hard Anti-slip floor Safety leash avoiding pet jumping out Front door with wind and rain protection Safety flag included Maximum capacity: 40 kgs Inside dimensions:80x56.5x65cm (LxBxH) Universal hitch fits 24'-28'' bikes Qty/40'HQ:569pcs available color:BLUE,RED,ORANGE!