Butterfly Sriver - most popular rubber of all-time.  No other rubber is capable of producing such a wide range of spin and speed.  SRIVER has all the "Gears" and is used by almost every style player at the world-class level.

We are authorized Butterfly distributor in the US.  All our Butterfly rubbers are newly made.  There is "MK" marking on the back of the package indicating authorized for North American market.

Thickness:   2.1mm

Color:    Black.