Layout: 60 degrees x 5 1/2" x 40 degrees RG: 2.54" Differential: .053" M/b: .020" Surface: 1500 grit w/ Crown Factory Compound Core shape: Asymmetric Manufacturer's Intent: When the lanes call for length and a violent backend, the Zero Mercy Pearl answers with authority. Designed to complement the Solid perfectly, the Pearl utilizes the same aggressive Super Offset core, paired with a cleaner, faster-reacting version of the all-new HK22C² coverstock. The result is everything

Layout: 60 degrees x 5" x 40 degrees RG: 2.51" Differential: .034" M/b: .016" Surface: 3000 grit sanded Core shape: Asymmetric Manufacturer's Intent: The most iconic name in bowling has done something it’s never done before: introducing the Black Widow Tour V1, a revolutionary new version of the most dominant line in the game. For the first time in the Black Widow line, we’ve reengineered the iconic Gas Mask core by removing the flip block and reducing the differential by ove

Layout: 45 degrees x 4 1/2" x 70 degrees RG: 2.49" Differential: .050" M/b: .016" Surface: 1500 grit w/ Factory Compound Core shape:...

Layout: 60 degrees x 5 1/2" x 40 degrees RG: 2.50" Differential: .056" M/b: .016" Surface: 1500 grit w/ Factory Compound Core shape:...

Layout: 60 degrees x 5 1/2" x 40 degrees RG: 2.55" Differential: .055" M/b: .017" Surface: 2000 Grit Sanded Core shape: Asymmetric...

Layout: 45 degrees x 4 1/2" x 70 degrees RG: 2.495" Differential: .050" M/b: .016" Surface: 1500 Grit Compound Polished Core shape:...

Layout: 50 degrees x 4 1/2" x 40 degrees RG: 2.60" Differential: .026" M/b: n/a Surface: 1000 Grit Sanded Core shape: Symmetric...

Layout: 45 degrees x 4 1/2" x 70 degrees RG: 2.54" Differential: .048" M/b: n/a Surface: 2000 Sia Air Sanded Core shape: Symmetric...

Layout: 45 degrees x 4 1/2" x 70 degrees RG: 2.48" Differential: .034" M/b: .016" Surface: 1000 Sia Air Core shape: Asymmetric...

Layout: 60 degrees x 5 1/2" x 40 degrees RG: 2.50" Differential: .058" M/b: .016" Surface: 1500 Sia Air w/ Factory Compound Core shape:...