Overview Mount Your Radar Tail Light Or Bike Tail Light To A D-Shaped, Aero Or Round Seat Post With This Quarter-Turn Mount. Includes Mount, 3 Fitting Shims And 2 Bands. Compatible With Round Seat Posts From 25.4 Mm To 35.0 Mm In Diameter; Aero And D-Shaped Seat Post Compatibility Varies By Bike Model. Material:High Strength Composite,Rubber Whats In The Box 1 X Tusita Seat Post Quarter Turn Mount 3 X Fitting Shims 2 X Rubber Bands
