This CTEK Bumper 300 (part no. 40-060) keeps your CTEK charger safe from bumps and scrapes, as well as protecting your vehicle from any damage it might incur from contact with the charger. Made from durable silicon rubber, the CTEK Bumper 300 fits comfortably around the main housing structure of the charger, while also providing a sturdy handle with which to carry the apparatus around.Fits the following CTEK chargers: MXS15, MXS25, MXS25EC MULTI US 2500, MXT14, M200 and M300.