Family fun Trail - a - Bike, the Folder One offers unmatched safety and durability for years of enjoyment. Backed by a lifetime warranty, the Folder One is the best way to introduce 4-6 year-olds to the joys of cycling. Weight: 23.5 lb (10.7 kg) Load rating: 85 lb (38.5 kg) For ages 4-6 - Steel frame, designed for children aged 4-6 - Simple single-speed is easy to pedal and ride - Patented, folding frame for easy storage and transport -Compatible with most 26" and 700c lead bicycles - Low center of gravity offers increased stability to parents and children. - Best-in-class steel hitch + 4 adapters will fit almost any seatpost -Full chainguard and bashguard for enhanced durability - Includes safety flag for maximum visibility on the road