(what is an onacup?)

original: "A cup with two holes that allows you to enjoy different types of sensual sensations - the “Bitter Side” and the “Sweet Side”.
The “Bitter Side” firmly tightens while the “Sweet Side” gently clings to your penis.
Normal use is one side at a time. But, using both sides simultaneously transports you to the virtual world of a “threesome”."
Foxy says: 2 for the price of one. Soft and Tight or both at once.

Onacups are ment for single-use and can only be used a few times.