These Non-Slip Battery straps for 6S includes one 265mm x 15mm strap and one 380mm x 20mm strap. Each strap has a non-slip coating to help keep your batteries securely in place. These are sized specifically to work in Arrma 1/8th scale vehicles like the Kraton, Outcast 6S, Notorious 6S, Mojave, Typhon 6S, as well as many other surface and air applications.