The Purse Ring Type BL-Ⅱ is a newly developed model with improved operability by adding a dual gate opening mechanism to the conventional Purse Ring Type BL (Size100). One gate can be released from two directions by using a spike or the like. The other gate can be opened with the press of a button. This helps prevent the gate from being opened by accident, ensuring greater safety while under the sea. The hook uses an interlocking system to securely latch onto the product, allowing for a greater working load limit. Not only can the internal spring in the gate be replaced when experiencing deteriorating performance as a result of aging and other factors, the roller can be replaced as well.