A new addition to our Auto Shackle Type Ⅳ line-up designed for use with aquaculture nets. A brand-new compact rigging hardware product, Auto Shackle Type IV-A, which inherited the basic concept - "quick release" and "secure rigging" - of ASANO's Auto Shackle series. The gate can be released remotely by pulling a rope attached to the main body. If the performance of the gate spring deteriorates, due to aging or other reasons, it can be replaced with a new one using a hexagonal wrench.