1" x 4-1/2", Nickel, Panic Snap, Round Swivel Eye, Designed For Applications Where A Positive Locking & Quick Release Snap Is Required, Highly Resistant To Rust & Corrosion, Swivel Eye Eliminates Tangling, Spring Operated Sleeve Is For Positive Locking & Quick Release In Case Of An Emergency, Can Be Opened Under Load, Boxed Loose.