Features： 1、Applicable Brand: Bicycle tail light mounting bracket is suitable for Magene tail light. Exquisite workmanship, beautiful appearance. 2、Scope of Application: Only applicable to bicycle circular seat poles with dimension of 31.6mm, 30.8mm, and 27.2mm. 3、Nylon Material: Bicycle tail light mount bracket is made of nylon material, fine workmanship makes it durable, not easy to damage. 4、Small Size: The bicycle tail light bracket is small in size, which will not take up too much space after installation, so the bracket will not hinder your riding. 5、Easy to Install: The bike tail light bracket has simple structure, and is aso equipped with washers and a wrench, which can be easily installed on the bike seatpost and firmly fixed. Specification： Item Type: Bicycle Tail Light Bracket Product Material: Nylon Weight: Approx. 29g / 1.0oz Package List： 1 x Bracket  2 x Washer  1 x Wrench  1 x Screw