Product Description: 【Design Feature】Tail hook style hanger designed to align rear derailleur positioning.【Material & Build】Aluminium-alloy style structure suitable for everyday riding conditions.【Handling Ease】-friendly design with mounting screws included.【Usage Experience】Designed to support proper derailleur alignment when fitted correctly.【Occasion / Application】Suitable for bicycle maintenance and drivetrain repair routines.【Compatibility】Fit option for selected bicycle frames with matching hanger shape and spacing.【Portability】Small size allows easy carrying as a trail or workshop spare.【Gift Choice】Useful cycling accessory gift for bike owners. Thank you for your interest and support. We strive to provide practical and reliable products for your daily needs. Please note that due to lighting conditions, photography, and differences between display devices, the product color shown in the images may vary slightly from the actual item. The actual product shall prevail. We appreciate your understanding and wish you a pleasant shopping experience.