About This 1.Compliant to OSHA-compliant safe programs standards for lock Out Tag Out Stations and lockout tagout Devices 2. Each lock has two keys: a spare key can prevent the loss of the key from causing unnecessary damage.Please check with the security supervisor before purchase that a spare key is allowed. 3. Each lock and key has a corresponding number: convenient for your LOTO security management, the number is laser printed, very clear and not easy to erase. 4. Standard industrial size: 1-1/2 in. Wide lock body;1/4 in. diameter shackle with 1-1/2 in. length, 25/32 in. width. 5. 30 locks, two keys for each lock. 30 *LOTO Lockout Tagout Tags. Every key is different. If you are not satisfied with our products, please contact us and we will reply to you within 24 hours. Overview Brand : JOJOMARK Special Feature : Key Lock Lock Type : Key Lock Item dimensions L x W x H : 4 x 4 x 2 inches Material : Plastic