When stepping up to our VIGMA Diamond Series billiard balls, you'll notice a certain flair with the unique diamond shaped numbers surrounding the inlaid numbers. This ball set is designed for the serious players who want the best. The Diamond series is the flagship of our tournament series billiard ball sets. These balls are manufactured to extremely high standards for weight, equilibrium, hardness/density, color accuracy, and circumference. The Vigma® brand is backed by three family generations of billiard ball manufacturing which results in the creation of the highly sophisticated, specially engineered KOBO™ resin for long lasting durability and thoroughly tested to provide optimimum rebound and equilibrium for consistent speed, spin, and and rebound. When you are ready for the newest technology and prepared to play up to the competition, choose Diamond Billiard balls by Vigma®. All Vigma pool balls come with a LIFETIME WARRANTY.