The Callaway Big Bertha B21 Hybrid #4 Wood is a right-handed golf club with a loft of 21 degrees, designed for players with a regular flex. It features a graphite shaft with a shaft length of 40 inches, providing a comfortable and effective swing. This versatile club can be used as a hybrid or utility club, ideal for various situations on the golf course. The Big Bertha B21 model from Callaway offers premium quality and performance for golfers looking to improve their game.