Quick release - 30 seconds to fit, remove and swap between bikes after initial installation- Designed for children 18 months - 5 years, up to 60lb / 27kg, with 2 foot peg positions- Adjustable leg width, angle, saddle position, and 2 foot peg options - making it simple to get the perfect fit- Thick rubber padding, the Shotgun 2.0 seat is safe to use on carbon or alloy frames