Luxilon Smart 130 Black Tennis String - High Performance for Competitive Play & Durability | Perfect for Advanced Players & Tournament Matches

Luxilon Smart is a revolutionary polyester string that adapts to swing speed—stiffening for control on fast swings and staying loose for added feel and power on slower shots—making it ideal for modern big-hitting players. Smart is recommended to be strung around 40lbs or 18kg in tension.