Description: Premium Material: Motorcycle Rear trunk rack luggage rack is made of aluminum, strong and sturdy, provide strong support for your luggage.Extra Storage Space: Rear Rack Mount Bracket extension mounting bracket provides you with extra storage space, increase the storage capacity of your electric bike trunk with this rack.Easy Installation: Electric Bicycles rear trunk bracket is easy to install. No need to remove the backrest; Note: Mounting plate that attached on the backrest width is 5cm. Please check your backrest size carefully before ordering.Electric Bicycles Modification Kits: This Detachable electric bikes rear trunk tail box mounting rack is a practical and reliable accessory.Enhanced Storage: This multi-functional design allows you to transport luggage, shopping bags, and even rain gear. Suitable for weight less than 4kg small and medium tail box. Not suitable for large aluminum alloy tail box! Specification: Material:?Aluminum Size Chart: 25cmx16cm/9.84inchx6.30inchInstallation Plate Width: 5cm/1.97inch Package Includes: 1?Electric Bike Rear Trunk Mounting Bracket Kits Note: Please allow slightly errors 1-2cm differences due to manual measurement.