The Kenter shackle is a joining shackle used specifically to join two stud link chain elements together to form a common or larger link. It is comprised of two separate halves which are joined together with a centre chock and secure taper pin, locking the two halves together. Dismantling the kenter joining shackle for re-use is straightforward. Simple use a punch to drive out the taper pin - this will dislodge the lead pellet which holds the pin in place. Then tap the centre chock away and the two halves will disassemble. This structure makes it very popular in shipping industry. If you want to know how to connect and dismantle kenter shackle, following link may be helpful. http://www.ekaship.com/anchorchain/how-to-connect-and-dismantle-a-kenter-shackle-14.html