With the 40 mm ball there will be a revival of special ANTI-rubber sheets with an outstanding control. DONIC therefore has developed ANTI-concepts especially for the 40 mm ball. The ANTI 40 playing surface is insensitive to the opponentнs spin, but it is a little bit grippy itself and it is, in contrary to most of the ANTI-rubber sheets, soft and elastic what is especially important. With DONIC ANTI 40 block and chop techniques are completely under control and due to the high elasticity of the rubber sheet, the ANTI 40 is comfortably to play. The DONIC ANTI 40 is available in a defensive (D40) and a allround (A40) version. The rubber surface is the same, but the sponge is designed a bit quicker in the allround version.