Wolf Tooth's Ultralight Chainwhip, with a wrench made of aluminum is ideal for cassette swapping anywhere. Being easy to pack, lightweight, and extra durable, this chainwhip is perfect for races that're a journey away. Features: 7075-T6 Aluminum handle Specifications: Compatibility: Any cassette up to and including 12 speed cassettes Handle Length: 11 inches (28cm) Colors: Red Weight: 170g