The Aosom 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. Features: - 2-in-1 design can be used as a trailer or stroller - 2 inflatable rear wheels and 2 EVA front wheels provide a smooth ride - Ventilated mesh screen at the front, top, side, & back - Weather-resistant oxford fabric cover protects pets from bad weather - Safety leash keeps pets in place - Red flag and reflectors provide visibility in traffic and low-light conditions - 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 - Assembly required Specification: - Color: Grey, Black - Material: Steel, Oxford Fabric - 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 - Front Wheel Size: Φ8" - Rear Wheel Size: Φ20"