HONBAY Ergonomic Design Bicycle Handlebar Grips Bicycle Mountain Bike Soft Rubber Handlebar Grips Widen Holding Surface Material: High quality rubber,comfortable and no-slip Ergonomic design Widening the grips' the bearing surface of the hand The design succeeded in cutting the pressure from long-riding down The aluminium inner ring keep grips tight,no worry loose or fall down Size(approx.): L 5 1/16" x W 1 7/8" (130 x 48mm)suitable for 23 mm-diameter handlebar.