Product Description With the Litemove rear light mount, you can easily attach your rear light to your seat tube or seat post. Product Specifications: Application:MTB, Road, City & Touring Manufacturer Number: black | 27.2 mm: SP1-272ba black | 30.9 - 31.6 mm: SP1-316ba Contents: - 1 x Litemove rear light mount for seat tube/seat post Manufacturer: Litemove Technology No. 20 Gongye 5th Rd. Taichung City 407 Taiwan info@litemove.com Distributor: Paul Lange & CO. OHG Hofenerstraße 114 70372 Stuttgart Germany info@paul-lange.de