Barton 2 point Lazy Jack Kit • Boats up to 30ft - The Lazy Jack kit keeps the sail in place when slab reefing and when stowing the mainsail, making it easier and neater. These new lower priced kits use 4mm multiplait nylon rope attached to either 2 or 3 positions on the boom and must be used in conjunction with the topping lift. Suitable for boats up to 35ft.