The Head Radical Pro Auxetic 16x19 4-1/4 Tennis Racquet is a high-quality tennis racquet from the reputable brand HEAD. With a head size of 98 square inches and a grip size of 4 1/4 inches, this racquet is designed for optimal performance on the court. The Auxetic technology in the design provides enhanced feel and control, making it a great choice for players looking to improve their game.