Pirhosigma Set of 4 Sizes Bike Seat Post Adapter Shim Seat Post Adapter Bicycle Seat Tube Conversion Sleeve 25.4mm to 27.2/28.6/30.9/31.6mm 60mm Length Aluminum Alloy for Road Mountain Bike MTB

Description:
1) This set of Bike Seat Post Adapters is included 4 sizes with 25.4 mm to 27.2/28.6/30.9/31.6 mm
2) You can use this product to adjust your bike seat post to different sizes ones
3) They are made in high quality material of Aluminum Alloy to support the high strength
4) It's widely used for not only Road bike, but also for Mountain bike MTB
5) Note: Please be sure that check your bike seat post before placing order

Features:
1. Color: Black
2. Size: 25.4mm to 27.2 mm / 25.4mm to 28.6 mm / 25.4mm to 30.9 mm / 25.4mm to 31.6mm with 60mm
Package includes:
1 x 25.4mm to 27.2mm Seat Post Adapter
1 x 25.4mm to 28.6mm Seat Post Adapter
1 x 25.4mm to 30.9mm Seat Post Adapter
1 x 25.4mm to 31.6mm Seat Post Adapter