Spring Tensioned Snap Shackle

These two parts together can create an easy and inexpensive upgrade to your boat. The spring keep the shackle from twisting and always oriented in line with your mainsheet system. It can be added to the top or bottom of your mainsheet on boats like an F18, Hobie 18, Hobie Miracle 20 and just about any other boat that uses a 1/4" shackle to connect the mainsheet to the traveler and boom.