Kinedyne's Transport Grade 70 Chain is a strong, secure, efficient, and reliable cargo securement method built to deal with rougher cargo. Manufactured from heat-treated carbon steel for industrial strength, this chain has the durability to handle the rough tie-down jobs that would damage web tie-down assemblies. The Transport Grade 70 Chain is available in the following sizes: 1/4", 5/16", 3/8", and 1/2". Each size comes in bulk in a barrel or pre-cut in a barrel or box. All Kinedyne chains are manufactured in compliance with the recommendations set forth by the National Association of Chain Manufacturers (NACM).