The latest YINHE MOON 12 BLUE&GREEN is a new milestone in the history of YINHE rubbers. It adopts the 8th generation MAX TENSE (deep tightening technology, the new formula blue rubber has obvious tension, matched with 12# medium density flexible sponge made in Japan, it can release its own energy quickly. It's a type of light weight, good friction, high elasticity and fast rubber.