ConvaTec51421040BX - Natura Moldable Durahesive Skin Barrier Accordion Flange with Hydrocolloid Flexible Collar, Opening 7/8 to 1-5/16 (22 33mm), Flange 2-1/4 (57mm)

It is what is needed

This skin barrier’s opening is flexible so you do not need to cut an opening. It fit snugly around my stoma. There is some flexibility around the attachment site to the appliance making it easy to move about. I have had NO leaks.