Roto Grip Transformer Weight:16 lbs Rippled rubber heel with an

Rippled rubber heel with an adjustable front edge

Core falls under the same rating as the immortal

Bowling Wrist Positioner

Transparent “Easy View” top

The Wedge Kit allows your existing Mongoose to be full adjustable and still light weight

Roto Grip Transformer Weight:16 lbs Rippled rubber heel with anRoto Grip Transformer High Performance Bowling Ball The Roto Grip Transformer truly lives up to its name, offering one of the most versatile and tunable motions in modern bowling. At the center of its performance is the innovative Morph Wing Core, a dynamic asymmetric design that transforms more than any other core on the market once its drilled. By removing mass from the cores distinctive wing, the internal weight shifts dramatically, significantly