Track Kinetic Obsidian Select Weight:15 lbs. The GB4 was a fantastic

The GB4 was a fantastic release last year for Ebonite

Color: Green/Silver/Black

A higher energy transfer to the pins with less deflection upon impact is what can be expected with this design

and helps remove oil from the ball to maintain that perfect performance

durable microfiber upper plus Sta-Dry Open mesh tongue and collar for maximum breathability

Track Kinetic Obsidian Select Weight:15 lbs. The GB4 was a fantasticTrack continues the popular Kinetic series in the Track Kinetic Obsidian. This ball features the modified Kinetic core which has a low RG, medium differential, and low mass bias. These components allow this ball to save its energy longer but use it quicker. Track has combined this core with a solid version of the DR 7 coverstock which gives length with a strong reaction at the backend. With a 500 2000 grit finish this ball is recommended for medium to