Spliced to the sheets, Press Locks are designed to be strong and light, yet easy to use in those tight mark roundings. Their opposing trigger mechanism is ideal for headsail sheets and other applications that require a smaller fitting, and they're designed to pass through lead cars to make re-leading the sheet easier. The Press Lock Junior is perfect for boats 24 to 40 feet, and has been seen widely on Farr 40s. The Press Lock Senior also is a tried and true veteran, commonly found on America's Cup boats and maxi boats. These shackles can cover boats from 40 to 80 feet.