Online Expert Present This Beto Cycles Adjustable Bicycle Bottle Holder Seat Plastic Water Cup Cage Rack with Quick Release Clamp Bicycle Accessories. Thermo stable material, light weight and easy carry; Install tools will be attached, it's easy fixed on your bike; Hold your bottle when you cycling, convenient and safety; Suitable Fit for all bicycles Material: Steel materials, super toughness will not break under normal use.