Spin up your game with the Luxilon 4GS! Its comfortable co-polyester provides some of the best spins and control you can find on any string in the market. This made from Luxilon's famous poly-ether-ether and doped with nucleates. The string is completely impervious to atmospheric conditions such as moisture. Reduces tension at least 10% lower than nylon strings to provide optimum playability as 4G does not suffer from tension loss common to other strings. The Luxilon 4G string is made for the player that is looking for a comfortable co-polyester that provides great spin and control but those that are looking for power may want to look somewhere else.