Конверсия прочная трубка алюминий литое сиденье пост рукав велосипед горный велосипед езда диаметр Регулировка адаптера Велоспорт практичный

Description:
Made of aluminum alloy material, durable and sturdy.
Practical tool to change the diameter of bicycle seat post.
Seat post diameter can be converted to 28.6 mm, 30.1 mm, 30.4 mm or 30.8 mm or 31.6 mm.
Just using little accessories can save money to buy a seat tube.
Suitable for mountain bikes. Compact size is portable to carry.
Specification:
Material: Aluminum Alloy
Diameter: about 28.6 mm/30.1 mm/30.4 mm/30.8 mm/30.6 mm
Color: Black
Package Includes:
1 Pc x Seat Post Sleeve
Note:
1. Due to the light and screen difference, the item's color may be slightly different from the pictures.
2. Please allow 1-2 cm differences due to manual measurement.