Item description from the seller：

Size:20mmX400mm
Color:Blue+Black
Package:6pcs/set
Fit Batteries and Electronics
Works for 3S-4S Lipo Batterys  Monster Truck / Car Quads, Drones, Helis, Planes and more
Non-Slip Rubberized Coating - Keeps Batteries and  Electronics Securely in Place
100% new and high quality
Durable construction
It can bear huge pulling force and is durable.
Built to strict quality control standards.