The Cup is one-size and made in soft and pliable PVC. Attached to the cup is a 50 cm quality PVC tube.
An anti-kink feature is built into the cup where the tube is attached to the outlet of the Cup. The anti-kink ensures unrestricted flow no matter whether you're seated or standing.
Penis is inserted into the cup through a flexible silicone membrane. The membrane adapts to the varying diameters of penis, and will accommodate minor inaccuracies in measurements as well.
The membrane comes in four sizes: Small, Medium, Large and Extra large.