Toopre Bicycle Seat Post Rubber Ring Dust Cover Cycling Silicone Waterproof Mountain Bike Seatpost Protective

Specification:
Suitable for road bikes, fixed gear, various bicycle and easy to install
Made of silicone material, highly elastic, durable, good compatibility and non-slip.
Effectively protect the seat tube internal cleaning, prevent dust rain water from entering.
Small size suitable for 25-30mm seat post in diameter,large size suitable for 30-35mm seat post in diameter
Stylish design makes your bike attractive
Package includes: 1 X Seat Post Ring
If you don't know the size of seat post, you can measure it or buy both.
Note: There is tolerance in manual measurement, please refer to the actual product.