5 PACK 20mm x 200mm HD Rubberized Battery Straps Non-Slip - Apex RC Products #3030 Great For Securing Batteries and Electronics Works with Quads, Drones, Helis, Planes and Cars Non-Slip Rubberized Coating - Keeps Batteries & Electronics Securely in Place! Fits Most 3S-4S Lipo Batterys - Perfect For Most 250mm FPV Racer Batteries We now pack these in a way to avoid the rubber from peeling off the strap when being unpacked