Luxilon Smart - 125 Black - String Reel knixwear According to Penn

According to Penn

360 degree motion

with excellent tension maintenance

Hard-wearing

lightweight material to keep you cool and classic line to keep you looking great on court

Luxilon Smart - 125 Black - String Reel knixwear According to PennSmart is the newest, and maybe most revolutionary, addition to Luxilons world famous selection of polyester strings. Essentially taking the place of M2 Pro, Smart is on the softer side for a polyester string just one rung up the ladder in terms of stiffness from the ultra soft Element, but that is only part of the story. The characteristic that allows this string to stand out is that it reads your swing and adapts to it shot by shot. As you swing