Aosom 2 in 1 Bike Trailer, Foldable Dog Bike Stroller with Aluminum Frame, Quick Release Wheels, Safety Leash, Anti-Slip Mat, Hitch Coupler, Reflectors, Flag for Medium Dogs, GreenProduct Features Stroller & Trailer: Made for both walking and riding, this pet trailer for bikes features a handle for pulling it on foot when it's not attached to your bicycle, allowing you to travel with your pet without bearing the weight from a dog backpack, purse, or portable carry cage. Park and continue on foot whenever you find yourself ready. Safe Design: Double safety features increase visibility using a red flag and reflector to protect