Fast simple and reliable. The patented Ronstan Ballslidetm system buries the existing hull keel in the mast. It is therefore not necessary to remove the rail. The BallslideTM carts have so-called ?captive ball bearings?, which means that the balls stay in the cart, even if the cart is not mounted, and can therefore be easily removed and put on the mast when the mainsail needs to be installed.· The BallslideTM carts fit the most popular masts , and for boats of up to 60 feet.· The continuous ball bearings make it easier and faster to raise and take down the sail.· No rails are required. Ballslidetm uses the existing hulkele· The range includes all parts to make a complete system.
