Silicone Dust Cover Bicycle Seat Post Bicycle Parts Seat Post Ring Cycling Seatposts Clamps Cover

Label:Yes Package includes:1 X Seat Post Ring High elasticity, good compatibility Suit for:25.4/27.2mm Seat Post Size L :30-35mm Suit for:30.4/30.8/30.9/31.6/33.9mm Seat Post Material:Silicone Size S :25-30mm Color:Red/Green/Blue/Black

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.