Bike Rollers Adjustable Bike Trainer Stand Foldable Indoor Cycling Bicycle Roller with Resistance

SAFE: Parabolic rollers enhance stability and are safer than straight rollers, choosing a safer indoor bike training rollers DURABLE & FOLDABLE: High-strength and high-end aluminum alloy roller bicycle trainer, with three aluminum rollers mounted into an adjustable frame to hold bike wheels. Never worry about our quality. This roller trainer is foldable, handy and save space SEALED BEARING: Bike roller with sealed bearing makes this roller trainer works more smooth LIGHT WEIGHT & PORTABLE: 3 folds flat and lightweight ( only 6.5kg/pair ) design for easier storage and carry COMPATIBLE WITH: The front adjustment holes with measuring cylinder can adapt different bicycles wheel, suitable for mountain bike,700c road bike, folding bike size between 16-29″