This is the Jaw Swivel Snap Shackle 316 Stainless Steel For Diving Features: Swivel bail allows for connection with dynamically moving parts, like spinnaker halyards. Jaw bail with clevis pin for when a line requires frequent removal of the shackle. Quick release pin allows the snap bail to be released, even under tension. Sizes:2-3/4" Depending on shackle length, the maximum working load limit ranges between 6.4 and 16.3 kilonewtons of force. Safe working load depends on application, and even orientation of the shackle under load. Made out of premium 316 stainless steel to drastically reduce wear and corrosion. Jaw Swivel Snap Shackle 316 Stainless Steel For Diving