The ProngLok Pro 4 Seal is a metal “crimp” seal used in conjunction with a wire and secured with a sealing tool. The sealing tool provides a secure fit and a large flag provides room for embossed information. Once crimped, the wire cannot be removed without being cut or destroying the seal. Easy to install and use, it is available in aluminum or zinc coated steel. Standard packing is 1,000/box, 5,000/carton.