The new benchmark in Multiplying Balls. Awesome feel and Gorilla-Grip. Great Red and White color. Nice bounce. Shell will Simi-lock to ball for easy no worry tosses from hand to hand. Shell is covered in the same Gorilla-Grip material as the balls. Set comes with three red Gorilla-Grip balls, one red Simi-locking Gorilla-Grip shell and as a bonus, we have added one white Gorilla-Grip ball as a final kicker. Far superior to even Silicone Balls. No shell separation over time. If you use Silicone balls, you know what we mean. MULTIPLYING BALLS just got a whole lot easier.