1PC Silicone Dust Cover Rubber Ring Seatposts Clamps Cover Seat Post Ring Bicycle Parts Cycling

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