The Homcom Indoor Cycling Turbo Trainer is a steel-framed trainer unit, designed for indoor use. It is manually powered and features magnetic resistance, making it suitable for beginner adult cyclists. The foldable design and compact dimensions of 40-70 cm in length and 35-50 cm in height make it easy to store when not in use. Backed by a 1-year manufacturer warranty, this black trainer is an ideal addition to any home cycling setup. As is. Used. In great condition.