Relaxdays Indoor Bicycle Resistance Trainer, 6 Gears, for 26-28" Wheels Indoor Cycling Stand, Cardio Workout, Blue/Green

Indoor bicycle trainer for exercising in bad weather, the winter or while watching TV
Delivered pre-assembled - quick assembly with the quick release - Note: A hollow axle is needed to assemble the quick release!
Suitable for standard-sized bicycles with tire sizes from 650-720 mm or 26-28 inches
Made of solid steel for stability and a secure stand