This ball utilizes the Portal core which has a very low RG with a high differential and intermediate differential

Aero Spacer Mesh breathable upper

This core shape gives asymmetry as well as increased ball reaction that is desired by Web and Hammer fans

Reaction: Fast revving

Attach wedge of desired thickness to your existing Mongoose with or without glue / velcro

Ontheballbowling The Reaper Bowling Ball by Michael Graham Viz-A-Ball Bowling Ball This ball utilizes the PortalKnock down all the pins like a reaper with The Reaper Bowling Ball by Michael Graham! a Perfect spare ball to have. This is a custom bowling ball made to order. It can take 1 4 weeks to create, cure and ship the ball. Featuring: The Reaper Coverstock: Plastic Performance Type: Plastic Spare Balls Reaction: Straight Lane Condition: Any Ball Finish: Rubbing and Finishing Compound Single Buff The ball will have a light color ring around both halves, this