Official description:40 degree medium soft sponge, using newer sponge technology. This blue sponge has medium-sized pores. Although the hardness is increased, it is better than before.
The sponge should be softer. New particle structure: slender particles, independent of each other, and large space. Precise ball return: excellent ball return and control, sound
The sound is pleasant and easy to use. Vibrant attack version. Suitable for all-round offensive golfers, easy to use, and more fun. A new generation of rubber
Surface layer: Strong viscosity, comparable to the enhanced version of Bluefire M1 and JP01, but with a slightly flat arc characteristic. Good touch, suitable for all stages of play(
Depends on the thickness and hardness of the sponge.)