Counterweights HIGHSIDER EVO for mounting mirrors, black aluminum, inner diameter from 12 mm to 22 mm. Contents of Delivery: 1 pair included 2 x handlebar 2 x locking sleeve, D. 12 mm and D. 16 mm 2 x central sleeve type 1, type 2, Type 3 2 x central screw M6, toothed washer and tapered nut M6