The Donic Bluestar A1 Table Tennis Rubber is an offensive rubber with great power potential. The sponge is equipped with small pores and makes Bluestar different from all other Donic rubbers. This hard sponge guarantees a strong catapult effect, while the grippy top-sheet makes it possible to control the trajectory of strokes well. A perfect rubber for agressive play that demands practice to be able to use.