The Wilson Hyper Hammer grip size 4 is a high-quality tennis racquet designed by the reputable brand Wilson. With a large 110-inch head size and a comfortable 4 1/2″ grip size, this racquet is perfect for players looking for power and control on the court. Made in China, the Wilson Hyper Hammer model is known for its durability and innovative design, making it a popular choice among tennis enthusiasts.