Once you use a CTEK US 4.3 or US 3300 Battery Charger you may have a dilemma. It will be hard to determine which you enjoy more – your charger or your car? The CTEK Bumper Protector is a high-quality silicone rubber case that protects both! This protective case slips over CTEK US 4.3 or US 3300 12 V Batter Chargers to provide a soft-touch contact that eliminates the chances of scratching your paint upon accidental contact. The soft case also protects your CTEK charger in case it is dropped.