Features: and Durable Material: The bicycle earphone gasket is made of high-quality and durable nylon plastic material, smooth surface, and exquisite workmanship. Different Sizes: The inner diameter of the bicycle gasket is 28.6mm. There are 6 front rod gaskets in the package. The number is abundant and the size is diverse. Appearance and Performance: Automatic cutting of road bike gasket earphone gasket, smooth edge, suitable for most racing for cars, fine texture, and durable. Lightweight and Compact: The front bar spacer of the bicycle is very light and easy to install and disassemble to save a lot of for time. Wide Application: Super-precision cutting machine for bicycle for head headset spacers, which is very suitable for most racing and mountain bikes. Specifications: Material: Plastic+Nylon Color: Black Package Weight: approx.62g Size: As The Picture Shows for Two Sizes: 28.6/31.8mm Note: Please allow 1-3mm error due to manual measurement. Please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 6Pcs x Bike Spacer Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.