Quick Retrieve ROV Shackle (QRET TM), WLL 17-400 Ton is a worldwide patented product by Rovsco. It’s designed to be operated by work-class ROVs using subsea manipulators. It lets an ROV install it to lift and bring back or relocate an equipment at depths down to 6000 meter.
Its an easy to use product; nothing to screw or use cotter pins. All it takes to install, is to stab the pin into the shackle eyes and lock it in place.
QRET TM Shackles are galvanized and painted fluorescent yellow for easy visibility.