The Motor Trend MTP-CLMP Parrot Replacement Clamps can take up to 500-AMPs and are easy to use and install. They are color coded and great for any heavy duty use you plan on using them for. This handles are insulated for comfort and there"s 2 copper coated jaws per clamp. The rounded end of the clamp insures that you will never be poked, prodded or hurt by an errant clamp again. They are great for replacing old or used jumper cable clamps. Trust the brand you buy! Motor Trend has been the nation’s #1 automotive authority for over 60 years.