(what is an onacup?)

Q-to is an onacup from Osaka Kogel.
Made with a plastic- instead of a paper-shell this one greets you with a ring of heavy bumps that stimulate your base.
They are followed by an array of small bumps that stroke and caress your shaft
to end in a series of large bumps to rub and glide below, on top of and around your head in a most sensual manner.
Onacups (also known as onanism hole) are ment for single-use and can only be used a few times (by cleaning them or simply wearing an extra-thin condom).