Black 40/2.1 Blue Sponge RXTON3 Save Team Special RXTON 3 Back Rubber Manufacturer: LOKI Brand: RXTON LOKI is a new table tennis equipment manufacturer from China. The "RXTON" series of rubbers is particularly popular. This is a sticky rubber designed by Wang Hao and used in national team training. It provides excellent spin, speed, and power. A set of two is 2600 yen. If you are interested, please comment.