The Tiger Ball Peanut 2.4 – Foam Roller Peanut is a powerful tool for deep tissue muscle massage. Its patent-pending design offers even, controlled pressure, while “Gription” ensures a comfortable grip on muscles. The silicone surface prevents slipping, making it easier to keep in place while sustaining necessary pressure on muscle areas. With two 2.4-inch diameter balls, the peanut-shaped groove allows for precise spinal massage, avoiding direct compression on the spine.