Sepnine ASTM Passed Luxurious Baby/Toddler Bike Bicycle Trailer in Aluminium Frame BT-509(Green) 100% Polyester Imported This trailer has been passed sat 1975 test 20-inch push button wheels and fold-flat design for easy storage or transportation 88 lb. Weight capacity suitable for one or two children, fit to 24-28"bike It is alloy frame bike trailer with light weight Extra storage space for hauling around cargo