Hahace Seat Post Quarter Turn Mount Compatible with Garmin Varia RTL515，RVR315 Rearview Bike Radar Taillights, Generation 1(Black)

["Widely Compatible: Compatible with Garmin Varia RTL515, RVR315 Rearview Bike Radar Taillights/Compatible with Garmin Edge 1050, 1040, 1030, 840, 830, 540, 530 series cycling computers. It is also compatible with iGPSPORT GS 20, 25, 60, and 10 models. This bracket supports seatposts of 25.4mm, 28.6mm, and 31.4mm, making it ideal for road bikes, gravel bikes, and commuter bikes.","Quick and Easy: The bracket can be easily installed or removed using a strong clamp mechanism by simply tightening or loosening the nuts with a wrench.","Rugged and Durable: Made of durable plastic, the bracket is suitable for various environments, from rugged mountain roads to city streets.","Secure: This seatpost bracket firmly holds your bike's rearview radar or cycling computer, preventing accidental shifting or vibration even on uneven surfaces.","24/7：Please feel free to contact us if you have any questions. We promise to reply within 24 hours to ensure your satisfaction."]