Are there more sizes of the cushion available?

This article relates to the Philips Avent breast pumps shown below.
The Philips Avent breast pumps have a soft, adaptive cushion. There is only one cushion size. It is made of flexible silicone and designed to adapt to your specific nipple size (up to 30 mm/1.18 inches), just like your baby. This unique cushion makes the pump effective by gently stimulating your nipple.