Head Instinct PWR 110 Tennis Racquet 2025Head Instinct PWR 110 Tennis Racquet 2025 Featuring the new Auxetic technology, the INSTINCT PWR 110 is the most versatile racquet of the series. The INSTINCT PWR 110 is the perfect versatile racquet for the serious, mature high level player who is home on the baseline as much as at the net. It features the new Auxetic technology which provides greater stability and optimized energy transfer resulting in more power and consequently more ball speed.