Can be used as a trailer for your bike or a trolley for walks; Mesh windows at the front, top and sides keep the area ventilated; Two inflatable rear wheels and two EVA universal front wheels for a smooth ride. Can be used on different ground conditions; Reflectors and a red flag for visibility in traffic and at night; An open top and zippered mesh back door for easy access; Weather-resistant material keeps your pet from getting wet; An included safety leash to connect to your own; Easy to fold for storage; Maximum load 40kg, assembly required; Pawhut Dog Bike Trailer Pet Stroller | Green | Living Social