Commonly called pocket pussies, masturbation sleeves also emulate mouths, asses and generic holes. These toys are the ultimate upgrade from barehanded stroking. Some come in tubes designed to make them less awkward and more durable, and then others come naked, a molded tube that means you should probably keep the original packaging for storage. Most masturbation sleeves are made of a composite material such as Cyberskin or Senso. Fair warning: You should only use water-based lubes and you should keep them dusted with talc during storage. Masturbation sleeves tend to degenerate quickly if you don't use water-based lubes, and they tend to become sticky if you don't talc them down when you store them.