Exclusively designed for Garmin Varia RTL515/510, Fit well with Garmin RTL515/510 varia mount, Lightweight: 0.27 ounces Tie the cable with this case and fix the cable under your seat post, protect your Garmin RTL515/510 from Falling/ Damage/ Lost during riding. NO effect to use any Garmin Varia RTL515/510 Mount / Holder, No effect for your Garmin Radar 515/510 signal when riding. light weight, heat dissipation, Protect your RTL515/510, Durable plastic, one more secure cover for your Garmin Radar 515/510, peace of Mind when riding. You get: 1* Case for Garmin Varia Radar RTL515/510, 1* Elastic Cable, Lightweight: cover only 0.27 ounces Anti- Lost Protection Case/Cover for Your Garmin Varia Radar RTL515, Peace of Mind when you riding, use this case to protect your Garmin Varia Rear Tail Light 515 from Falling / Lost [ 1*Case + 1*lanyard]