Our bicycle roller trainer features a foldable design for easy storage and space saving.Parabolic rollers enhance stability, making it a safer choice for indoor cycling training rollers.Want to enjoy cycling training without being affected by the harsh weather outdoors? You can use your bike as an exercise bike in the comfort of your home.Product parametersMaterial: high-strength aluminum alloy + ABS engineering plasticSize: 135*46.5*13cmColor: black blueApplicable models: 24-inch-29-inch mountain bikes and 700C kilometer bikesFunction: indoor and outdoor cycling exerciseWeight: 8.3KGPackage ContentsRiding platform*1