The Master Lock 71CH Chain is a high-quality keyed padlock designed for business and industrial use. This product includes 12 chains measuring 9 inches each, along with 12 additional 71SC10 Shackle Collars and 3 additional 71SC12 Shackle collars. With a total of 20 pins, this chain lock provides durable and secure access control equipment for various facility maintenance and safety needs. The Master Lock brand ensures reliability and peace of mind in protecting valuable assets.