Item Size: 1.52 x 1.85 x 0.04 in; 3.85 x 4.7 x 0.1 cm. ( Inner Diameter 34.9mm )
Product Adaptation: Suitable for 30.4mm to 31.8mm Bike Seat Posts.
Item Included: Aluminum Alloy Clamp Ring x 1; Clamp Ring Screw x 1.
Product Manufacturing Process and Materials: High density aluminum alloy, Lighter Weight, Higher Strength. The product contour is manufactured by the latest German CNC machine tools, with higher precision. Higher requirements for environmentally friendly plating process to minimize production pollution. Minimalist packaging to reduce carbon emissions.