Brunswick Rhino Metallic Blue Black Bowling Ball Looking for your first hook ball or a reliable option for dry to medium oil lanes? The Brunswick Rhino Metallic Blue Black is a stylish and smooth performer built to deliver easy length and controlled backend motion. Its sleek R-16 Pearl Reactive coverstock provides excellent lane-read consistency while reducing overreaction in varied conditions. At the heart of the ball is the iconic Light Bulb Core, known for its stable and predictable roll. With an RG of 2.52 and a differential of 0.030 in the 15lb version, this symmetrical core creates just the right amount of track flare?offering clean transitions without sacrificing control. This Rhino is not just beginner-friendly?it?s engineered with Brunswick?s smart lightweight technology, meaning every weight from 12LB to 16LB keeps the same core shape and performance profile. Technical Specs: Brand: Brunswick Coverstock Type: Pearl Reactive Coverstock Name: Brunswick R-16 Pearl Reactive Core Shape: Symmetrical Core Core Name: Brunswick Light Bulb Core RG (15LB): 2.52 Differential (15LB): 0.030 Mass Bias Strength: N/A Flare Potential: 2 ? 3 Inches Surface Finish: 500 Grit Polish Lane Conditions: Dry ? Medium Oil Performance Level: Entry Level / Affordable Performance Color: Black, Blue Available Weights: 10LB, 11LB, 12LB, 13LB, 14LB, 15LB, 16LB Scent: None Whether you're just starting out or need a reliable dry-lane option, the Rhino Metallic Blue Black delivers smooth power and sharp looks at a great value.