Extremely Spinny with Donic Bluefire M1 Table Tennis Rubber Donic Bluefire M1 Table Tennis Rubber is a new rubber which offers top speed. This new high-tech generation rubber is equipped with FD3 Technology which will give you outstanding feeling with maximum control. It will provide you perfect combination of the large pored blue sponge with an extremely spinny top surface rubber. This rubber will give you best possible flexibility and sensational felling. Donic bluefire rubber is equipped high dynamic and extremely spinny top sheet which will provide you high arc when top spinning enables maximum speed and increase the speed. The speed of the rubber is 10++, spin is 10++ and the control is 6. It is recommended for top players who prefer to use hard rubbers. Rubber hardness is medium+ and spin elast surface is mostly for all attacking style of plays.