Black Rhino Pro

Both the Purple Rhino Pro (PRP) and Black Rhino Pro (BRP) are conventional two piece balls. Each contains a shaped core as one piece and a urethane cover stock as the second piece. The core shape is the same in both the PRP and BRP while the cover stocks of the two balls are different.

The core shape can be described as a sphere with a cylinder extending from the top and a shorter cylinder extending from the bottom. The green riser pin that can be seen on the surface of the ball in the label area shows the center line along the long axis of the core. As can be seen from the top view diagram, the core is symmetric around the pin, making the Rhino Pro a conventional two piece design.

The shell of the BRP is a conventional type of urethane that has been specifically formulated to perform well on medium to heavy oil patterns. The BRP comes factory sanded with a 320 grit finish. If the ball reacts too soon on the lane the surface can be easily smoothed or shined for less reaction. Wet sanding with 400 then 600 grit paper before shining is recommended. Highly polishing the BRP surface will make it more usable on moderately dry conditions.