TinARC III , the new high-elasticity sponge adopts extreme technique provides the rubber additional support which is stable and high elastic. The surface layer of rubber uses unique technique which make sit 'sticky & rough'. The pimple is specially designed for energy buffering and reserving, which makes the rubber perform excellent in ball holding. It creates strong spin which makes the player's in-table and middle-ling table loop technique fully performed. TinArc III, a new type of rubber preferred by top players who play with loop and control drives.