Multi-compatibleThe bike trailer coupler hitch fits most bikes such as for Schwinn and InStep brand trailers.Please check the size and type to make sure that it fit your bikes before ordering Safety EnsuranceThe bike trailer hitch attachment equipped with a connecting pin, is hard to get open after you finish installation, the hitch coupler is not easy to fall off, ensuring the safety of your baby and pets Sturdy MaterialThe baby bicycle trailer accessories are made of steel with black enamel coating, precision welding technology make them sturdy and durable, they are not easy to break, rust or corrode, suitable for long-term use Easy InstallationThe bike metal attachment connector accessory is easy to install and can be applied to instep bike, pet stroller and so on, suitable for daily use and family tour use, bringing much convenience for your getting around Exercise& EntertainmentWith an additional trailer coupler attachment, both Mom and Dad's bikes can be outfitted to tow the kids trailer, your kids will enjoy the bike ride.When your kids get tired , you can strap him next to your bike