POWER PRINCIPLE is a completely new. High-Copolymer, round, with a snap back as never before. The string has power, control at its best, supported by elastic additives.
Ideal for Club and Tour-Players with a powerful groundstroke looking for a very high level of control, durability and tension maintenance.
Made from same material like highly rated MSV Focus Hex ® but with round shape 25% less tension loss in comparison to well-known strings of competitive brands (based on data of TW University; Oct. 2017)