This Butterfly rubber is 1 of 12 approved Hardbat racket coverings This short pips, no sponge rubber harkens back to the early days of table tennis Orthodox rubber is very easy to control and is well-suited for both offense and defense Pairs well with Andrzej Grubba, Diode V, Boll Control, Maze Magic, XStar V, and other Butterfly blades Butterfly Free Chack table tennis glue recommended when assembling Butterfly table tennis rubbers