This Quick Release Battery Terminals Clamps Connectors was manufactured from polypropylene (red and black color covers), raw brass 12 microns tin plated, and stainless steel 316. With this, you can connect and disconnect your power source just in a few seconds. Tin-plated version of the product is widely used for demanding environments, the Marine industry e.g. for connecting boat batteries.
Make sure the clamps are a good tight fit and all connections are clean.
Simply snap down the plastic cover for a strong and safe electrical connection and lift the cover for safe and instant disconnection.