The Hakaishin I Cock Sleeve looks like a fiendishly adult version of the Tokyo Skytree, a large extender toy lined with countless small stimulating nubs and protrusions to give your partner even more from your thrusts. There are three main sections: a bulbous head with ribs and a torpedo, followed by two shaft sections with varying sized knobs and ticklers. You can also cut and trim the generously long shaft to your preferred length or needs.
The Hakaishin I Cock Sleeve features: