Features: The main body is expandable and for a variety of frame types. Stretching The built-in telescopic rod can improve the stability of the bike's center of gravity when pushing, and it is not simple to tilt. This item is made of aluminum alloy material and processed by CNC technology. The product is lightweight and has improved strength. It has a hollow design, exquisite workmanship, anodized. Enlarged design, don'for t worry about the small diameter of the easy wheel causing the shock to scrape the ground. The unique designed easy-wheel mounting position is retracted, avoiding the risk of wheel hitting. Specifications: Color: Bracket: Black/Red/Gold Easy Wheel: Black/Red/Gold/Blue/Green/Color Extension design: telescopic lever Size:12x10x4cm Compatible With bro-mpton bike. Note: Please allow 0-1cm error due to manual measurement. Make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: Single Bracket: Easy Wheel Holder + Wrench + Screw + Washer Set: Easy Wheel Holder + Two Easy Wheels + wrench + screws + washers .