The NiteRider Tail Light Strap Mount allows for quick installation and fitment on to standard seat posts. It features a quick release tab that allows you to remove just your tail light, leaving the strap mount installed on the seat post; ideal for when you leave your bike unattended or when it's time for a recharge. System Compatibility - Sentinel - Solas - Sabre - CherryBomb - TL 5.0 SL Not compatible with omega 300 and sentry aero 260 tail lights.