- The new GEAR NANO is a combination of Haf-sticky top-sheet and Middle-hard mousse texture cake sponge. The top-sheet could assure outstanding surface tension and grasp ability, and the sponge createrfirm and direct feedback. A new attaching technique is also used in the rubber which makes less loss of energy when transferring from the sponge to top-sheet. This rubber offers enough energy when doingactive/passive attacking and looping; and provides a good tolerance of fault and help to reduce UInforced Error.