1、High elastic silicone, high malleability, more closer to your seat post 2、Waterproof, soft and durable to use 3、Protect the seat post from sands or dusts after long distance riding or riding in the rain 4、6 Colors and 2 Sizes for you to choose 5、Compatible with most seat posts Description: After riding in the rain or cross-country, the seat post will full of sand and dust, it will scratched when you adjust it. This silicone dust-proof ring helps reduce water and dirt increase into the sear tube, as well as marking saddle height. This ring fits around your seat post to add extra touch of color to your bike. You are worth it. Features: 1. High elastic silicone, high malleability, more closer to your seat post. 2. Waterproof, soft and durable to use. 3. Protect the seat post from sands or dusts after long distance riding or riding in the rain. 4. 6 Colors and 2 Sizes for you to choose. 5. Compatible with most seat posts. Specifications: Material: Silicone Color Options: Black, Red, White, Blue, Yellow, Green Package Weight: approx. 6-7g Size Options: 25-30mm: Fits for 25.4/27.2mm diameter of seatpost; 30-34mm: Fits for 30.4/30.8/30.9/31.6/33.9mm diameter of seatpost Quantity: 1pc Package Included: 1 x Bike Dust Cover Ring Only