brand new and high quality Features: Disc brake aluminum bicycle rear shelf. Suitable for mountain bikes, road bikes and folding bikes. Easy to install and use. Adjustable height can fit for the height of the disc brake. Made of high-quality aluminum alloy, it is durable and strong. Awesome bicycle accessories. Installation location: the pillar below the bicycle for seat (the bicycle itself has holes for installation) One set of Bicycle shelf only, other accessories demo in the picture is not included! Specification: Type: Bicycle shelf Material: Aluminum alloy Color: As pictures shown Size: Length: app.40 for cm/15.75 in;Width: app.13 for cm/5.12 in;Height: app.30 for cm/11.81 Quantity: 1 Set Note: No retail package. Please allow 0-1cm error due to manual measurement. pls 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: 1 Set x Bicycle shelf