Our Big Bag Cat Righting System is a must for solo or lightweight crews to feel confident being able to right a capsized catamaran. It is powerful enough to right bigger cats without loosening shrouds. and is easy to install with no boat modification required. The bag attaches with hook and loop straps under the tramp for easy use and storage. Class legal for racing! Theoretical maximum capacity of the 18″ x 32″ bag is 250 lbs. The included 4:1 block and tackle kit does the heavy lifting for you! Complete and ready for use with blocks, cam cleats and 1/4″ lines.