Customize ball flight with Snake Eyes Viper XT adjustable weighting technology. This Viper XT Hybrid Head has a deep-CG bullet shape and features a single weight that shifts weight low and rearward — the one-two punch for optimal launch and more distance. Just install heavier screws to increase launch angle without increasing spin rate. Each hybrid head has a compact design and is made with precision-cast 17-4 stainless steel.