Description: 【Quality material】: Crafted from quality aluminum alloy, this mountain bike chain holder features builtin pom bearings for enhanced durability and wear resistance. Its sturdy construction ensures it remains deformed, allowing for repeated long term use 【Easy to use】: Designed with a multifunctional approach, bike hub chain keeper includes a spring clip for effortless installation and removal. The smooth rolling bearings ensure seamless gear shifting, making it user friendly even for beginners 【Antislip design】: The bicycle chain washer is equipped with an antislip texture design that provides stability during use. This feature is particularly beneficial when disassembling or cleaning your bike chain, ensuring a grip 【Compact size】: Measuring 16 cmx5.7 cm/6.30 inchx2.24 inch, this cycling accessory boasts a compact and lightweight design that makes it highly portable. It's an essential tool for cycling enthusiasts who prioritize efficient bike maintenance on the go 【Wide application】: This multifunctional hub chain keeper is nice for various uses such as chain cleaning, transporting, lubing, storing, and repairing bikes. It fits hub axles ranging from 142 mm to 148 mm, making it versatile for different bike models and maintenance needs Specification: Material: Aluminum Alloy Size Chart: 16cmx5.7cm/6.30inchx2.24inch Package Includes: 1 Bike Chain Holder, 1 Barrier Piece Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.