2-In-1 Dog Bike Trailer Pet Stroller with Universal Wheel Reflector Flag The convertible pet bike trailer and stroller is a great way to maintain an active lifestyle for your pets. This dog trailer for bike can be set up in minutes, making things easy and convenient to transport your furry friends. The mesh zippered screen on the front and back as well as the meshed windows on the sides, allow maximum airflow for your pet. Packed with features that help keep away wind, rain, and road debris from your beloved animals. Overall Dimension: 52.75"L x 28.75"W x 42.5"H(Trailer), 40.5"L x 28.75"W x 42.5"H(Stroller) Internal Dimension: 31"L x 21.75"W x 24.75"H Front Door Size: 13.75"L x 17.25"W Back Door Size: 15"L x 17.75"W Skylight Size: 15.25"L x 13.5"W Suitable for pets less than 23.5" in length, less than 15.75" in height at the shoulder and less than 40 lbs. in weight