You'll find that the inside is the exact same Hustle Core used in their previous balls but they've created a new Thrilled Reactive coverstock that will create earlier movement than all the others and help give you some calmness on friction

weighing under 5 lbs making it great for airline travel

The Hammer Black Widow Urethane takes the successful Gas Mask core and wraps it with a urethane coverstock

The Roto Grip 3 Ball All-Star Edition Carryall Tote Red/White/Black holds up to 3 balls

Storm Phaze II Bowling Ball Weight:13 lbs. You'll find that the insidePredictable Motion for Demanding Lane Conditions The Storm Phaze II bowling ball is built for bowlers who want a strong, readable reaction without a sharp last second jump. Its TX 16 solid reactive coverstock creates traction in oil, while the symmetrical Velocity core helps the ball rev early and continue smoothly through the pins. This combination gives the Phaze 2 Storm a controlled shape that works well on medium to heavy oil. It reads the middle