Pear shaped End shakle can be used to connect the anchor-chain to the anchor. In the USA it often replace the D-type anchor-shackled used in the rest of the world. It can also connect a smaller chain to a bigger chain.
Pear shaped End shakle in every size from No 2 to No 9 to cover anchor-chain dia 19 - 95mm always ready in stock. Bigger Pear shackles on request.