JOOLA presents the Zack rubber, a classic German-made rubber tailored for players seeking a more moderate catapult effect and speed. Positioned as a high-quality, all-around rubber, it is distinguished by its excellent control, precision in ball placement, and tolerance to varying degrees of rotation. Remarkable durability and exceptional value for money make the JOOLA Zack a must-have for enthusiasts of classic rubbers, crafted using state-of-the-art German technology. With a hardness of 42.5, it caters to a versatile range of playing styles.