Aluminum Alloy - Seamless chain adjustment: easily adjust the chain length of your folding bikes to maintain proper tension and ensure a ride - Enhanced efficiency: this chain adjuster minimizes friction, improving riding efficiency and reducing energy loss, allowing you to ride longer distances effortlessly - Durable construction: designed for longterm use, this chain adjuster is durable and reliable, providing consistent performance for your folding bike - Universal application: compatible with various folding bikes models, this adjuster can be used with different brands and types, offering great flexibility Benefits at a glance - Maintains proper chain tension for smooth folding-bike riding - Reduces friction to boost efficiency and extend riding distance - Built for long-term durability and reliable performance - Broad compatibility across folding bike models and brands What it offers - Function: seamlessly adjusts chain length on folding bikes to keep proper tension and reliable operation - Compatibility: universal application across various folding bike models, brands, and types - Material: aluminum alloy for durability and lightweight performance - Performance: minimizes friction to improve riding efficiency and reduce energy loss Usage scenarios - Daily commuting on a folding bike: quickly adjust chain length as needed to maintain proper tension during urban rides - Weekend long-distance rides: improved efficiency helps you ride farther with less energy expenditure - Tooling up a shop or performing repairs: universal compatibility supports servicing different folding bike brands and types with the same chain adjuster