Features: Dust Security: Effectively prevents dust, dirt, and debris from entering the chair post, maintaining it clean and reducing maintenance frequency. Impermeable Plannumber: Hurdles dampness penetration, especially in rainy otherwise humid conditions, ensuring the chair post rest oxidation complimentary and oxidation resistant. Shock Absorptparticlemail: Furnishes cushioning to reduce resistance between the chair post and frame, minimizing wear and enhancing cycling comfort. Extended Liferesortermeterror: Proposals comprehensive security for the chair post, significantly extending its existence and reducing replacement frequency. Strengthened Stability: Improves chair post stability, ensuring polisher excursions and a overall better cycling experience. Specifications: Component: Silicone Color: Black Size: 47mm Package Includes: 1pcs Dust Cover note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.