Versatility is a wonderful thing and the Tenga Dual Feel Cup Masturbator is a great example. This cup offers two different sides with two entirely different feels that can help get you to the perfect climax. There is a bitter side that is tight and a bit more rigid as well as a sweet side that is softer and a bit more gentle. This is a truly fantastic design. You can use each side carefully, or open both sides at the same time and use them alternately.