Storm Mix Purple Blue White Bowling Ball Whether you're shooting spares or just getting started in the game, the Storm Mix Purple Blue White is built for consistency, control, and lasting durability. Part of Storm's trusted Mix series, this ball features a traditional 3-piece core that provides straight, predictable motion?perfect for beginners or pros needing a reliable spare ball. Its U1S Pearl Urethane coverstock is the most durable shell Storm has ever developed, resisting chips and cracks far better than typical polyester options. Finished with a 3500 Grit Polish, it glides smoothly over dry to medium oil lanes while maintaining a controlled reaction. The eye-catching purple, blue, and white swirl design makes this ball as stylish as it is dependable?an excellent fit for recreational play or professional spare shooting. Technical Specifications: Brand: Storm Coverstock Type: Urethane Coverstock Name: U1S Pearl Urethane Core Shape: Symmetrical Core Name: Traditional 3-Piece Core RG (15LB): 2.69 Differential (15LB): .006 Mass Bias Strength: N/A Flare Potential: 0 ? 1 Inches Surface Finish: 3500 Grit Polish Lane Conditions: Dry ? Medium Oil Performance Level: Entry Level / Spare Ball (Storm Ice Line) Color: Purple, Blue, White Available Weights: 6LB, 8LB, 10LB, 11LB, 12LB, 13LB, 14LB, 15LB, 16LB Scent: None Dependable, durable, and great-looking?the Storm Mix Purple Blue White is the perfect spare ball or beginner?s first strike.