Columbia 300 Blue Dot standard drilling service This core has a low

This core has a low RG symmetrical shape with high differential that generates flare as well as awesome motion down the lane and on through the pin deck

This core is wrapped with the SPEC Solid Reactive coverstock which is not affected by heavy oil and keeps a powerful motion through the backend of the lane

Color: Teal/Black/Silver All colors do vary somewhat from the picture shown

Breathable mesh uppers

A must-have for any bowler

Columbia 300 Blue Dot standard drilling service This core has a lowColumbia 300 Blue Dot Everybody needs a good stand by. Blue Dot still reigns as America's true blue spare. Its high tensile polyester cover allows for the slickest performance on the driest lanes. With every shot, in every game, Blue Dot comes through with flying colors. Count on it. This re release ball is harder than the White Dot making it more reliable. Color: Silver All colors do vary somewhat from the picture shown Core: Bullet Coverstock: