This taillight strap mount from NiteRider is designed to securely attach compatible rear bike lights to standard round seatposts for consistent rear visibility. The flexible strap system allows quick, tool-free installation while maintaining a stable hold over bumps and rough pavement. A quick-release interface lets riders remove the light for charging or security while leaving the mount in place on the bike. Compatible with a range of NiteRider rear lights, it provides a simple and reliable mounting solution for commuting, road riding, and everyday visibility setups.