RYDOR Merax Folding Cat Dog Pet Carrier Stroller Three-Wheeled and Four-Wheeled (Pink, Four-Wheeled) Overall size:32L X 18W X 40H, the pet house:21D X 13.4L X 21.7H.Front wheel diameter:5.5; Back wheel diameter:7.5 Two hands folding system can fold quickly for easy storage and carriage Multiple mesh design keeps mosquito out and let atmosphere in, and give a good view for your pet 360 - degree rotating wheel for easy push and pull It can weigh up to 33 pounds