Zak Tool Corrections Key Ring Chain Nickel 30. This corrections keychain manufactured by the experts at Zak Tool feature a stainless steel construction with a nickel finish and are ideal for corrections police and military personnel. The Zak Tool Corrections Key Ring Chain is 30" in length and has a nickel finish and is much stronger than typical keyrings. This Zak Tool Corrections Keychain includes 2 emergency over rings to help keep the keys secure and 2 split rings to keep everything in place. Package Contents: Zak Tool Corrections Key Ring Chain - Length: 30 - Color: Nickel. Lifetime Guarantee Zak Tool ZT62-BLK: Corrections Key Ring Chain Nickel 30