Adjust the length of the two chain slings and use them for leveling asymmetric objects and hanging slopes. very convenient. When there is no crane hanging fee, you can also shave it by shortening the 5 m chain sling you are using. Compared to other manufacturer's shortening system, I am worried whether it is shallow and easy to disengage. I also considered grab hooks, but the point at which the use load dropped to 70% was useless.