Anti-chafe Patches prevent chafe and wear to gelcoat, varnish and paint, and their unique UV resistant surface provides friction free running minus the damage... Four patches in different sizes come in one pack. They are ideal for applications such as spinnaker tube exits, deck coaming protection for rope chafing and many other applications. This tough, low friction plastic can also be used to line the sides of centreboard cases and rudder stocks to reduce friction... To use, all you need is a pair of scissors to radius the edges of the clear, self-adhesive film patches. They can be cut to size to use around cleats or fairleads or even be applied to a spinnaker chute for friction free hoists and drops. Vulnerable areas can be protected and as a clear product, it will not detract from the overall visual effect of any surface. The glue has been developed to be waterproof and has a strong adhesion with a good temperature resistance and proven longevity.