This is a set of GARMIN cadence and speed sensors. It accurately measures cycling data and supports training and cycling. Compatible with ANT+ and Bluetooth, it can be linked with various cycle computers and smartphone apps. There are minor scratches from use, but no noticeable scratches or stains, and there are no problems with the operation. [Brand] GARMIN [Category] Cycle Computer Accessories [Condition] No noticeable scratches or stains [Color] Black系 (Black-based) [Other] ANT+, Bluetooth compatible Thank you.