Amazon.com : ODIER Bike Trailer Hitch Coupler for Instep and Schwinn Bike Trailer for Kids/Dog Replacement Bicycle Trailer Attachment for Baby Bike Trailers : Sports & Outdoors
InStep Take 2 Double Trailer Bicycle-Color:Light Blue/Gray,Style:Child Trailer - Walmart.com
Instep Bike Trailer for Toddlers, Kids, Single and Double Seat, 2-In-1 Canopy Carrier, for 1 to 2 Kids, 12+ Months,Multiple Colors - Walmart.com