REVA HYBRID Specifically Designed for Women - Big Bertha REVA hybrids are designed specifically for female golfers. Lofts, swingweights, shafts and the A.I. designed face cup are designed for confidence, high launch and powerful distance. Incredible Forgiveness from a Confidence-Inspiring Bertha REVA Shape - A large, high volume head shape provides incredible forgiveness to create a hybrid that is extremely easy to hit. Enhanced offset helps to reduce a slice and side spin for a straight and exceptionally long ball flight. High, Easy Launch from Precision Tungsten Weighting - Precision tungsten is positioned internally to deliver outstanding forgiveness and a high launch. Lightweight components are easy-to-swing and promote hitting the ball high in the air while an adjustable hosel provides the ability to optimize trajectory. Fast Ball Speeds from Jailbreak with Batwing Technology - The A.I. designed Jailbreak with Batwing Technology stabilizes the body, while allowing the face to flex for incredibly fast ball speeds across the face. Optimized Speed and Spin in the A.I. Designed Face Cup - A high-strength 455 face cup is designed using cutting edge A.I. technologies to optimize speed and spin across the face. Each model features a unique A.I. pattern to enhance performance in that specific loft. REVA IRONS Specifically Designed for Women - Big Bertha REVA irons are designed specifically for female golfers. Lofts, swingweights, shafts and even the precise use of tungsten are all designed for confidence, high launch and powerful distance. Exceptional Launch and Control from Precision Tungsten Weighting - Precision tungsten is used in two ways to improve launch and control. Up to 11g of external tungsten is positioned to promote outstanding forgiveness. And up to 35g of internal tungsten is positioned to create high-launching long irons and easy-to-control short irons. Fast Ball Speeds from an A.I. Designed Face Cup - A high-strength face cup uses A.I. technology to optimize speed and spin across the face. Each head throughout the set features a unique A.I. pattern specifically designed to enhance performance. Incredible Forgiveness from a Confidence-Inspiring Bertha REVA Shape - Callaway’s classic Big Bertha REVA shape has been refined to inspire confidence at address. Each iron is designed with thicker toplines, wider soles, enhanced offset, and longer blade lengths to create incredible forgiveness and a straight ball flight. Easy to Swing with Outstanding Feel - Big Bertha REVA irons utilize lightweight components to provide an easy-to-swing package. Our patented Urethane Microspheres produce outstanding feel while maintaining exceptional ball speeds.