Durable, stable, and reliable, these trikes are built to meet the demands of multi-user environments! All WINTHER trikes featured on this page incorporate an ergonomic design, rust-resistant powder-coated frames, real ball bearings in the front wheels, and slip-resistant pedals and handgrips. Swingcart. For children, ages 3-8. Comfortable recumbent design requires riders to pedal with their hands, strengthening the arms and chest. Ideal for developing the muscle strength needed to propel a wheelchair, or for children who are unable to pedal a traditional trike! SIZE: 31"L x 29"W. WEIGHT: 24 lbs. 5-YEAR GUARANTEE.