Nittaku Fastarc S-1 Sponge Thickness (mm):Super Thick 2.0 Powerful Speed & Spin with

Powerful Speed & Spin with medium Feel | Recommended for Advance Players

and stretchy mesh pocket on other side for holding a few small items

plastic is made in Japan

Rubber 8338 has a hard sponge

Nittaku Fastarc S-1 Sponge Thickness (mm):Super Thick 2.0 Powerful Speed & Spin with"Fast with an Arc" Rubber Recommended for OFF Players The Nittaku Fastarc S 1 rubber is "Fast" with an "Arc"! Nittaku Fastarc S 1 is the speed oriented version of Nittaku's Fastarc rubber. Utilizing a power topsheet and tension power sponge, this rubber generates explosive power along with great spin. G 1 means "Grip First" and S 1 means "Speed First" Choose Fastarc G 1 for more spin with great power, and choose Fastarc S 1 for more speed with great