The oval shape of the convex light barrier is designed to help a stoma that is difficult to manage: For example

Special design creates a comfortable pouch

a waterproof barrier against viral/bacterial penetration

Hurt-Free® Design

and debris while releasing iodine to kill bacteria

EvaCare Donut Pessary Size #3 Tacky Mats & Rollers The oval shape of theSRS Medical EvaCare Donut Pessary #3, 2 3 4", FlexibleA pessary can be placed temporarily or permanently, and must be fitted by a physician. This pessary is designed for third degree prolapse as well as cystocele and rectocele. The soft donut pessary can be compressed for insertion and is available in seven sizes. Soft flexible silicone construction. Treats 3rd degree prolapse. Pessary fitting Set available for determining the proper pessary size.