Can be placed in microwave for hot use or placed in freezer for cold use

Universal for pens and dosers sold in the U

Integrated filter helps eliminate gas build-up

even at high flow rates

Clove oil helps mask odor

All-Flexible Basic Flat Mounting Ring 1-5/8" Sold By:1 Each Can be placed in microwaveMarlen Manufacturing All flexible Basic Flat Mounting Ring 1 5 8" Opening, 3 3 4" Diameter, Green Neoprene Rubber Marlen Basic Flat All Flexible Mounting Ring is for persons with flat abdomens, good muscle tone and protruding stomas. Specially meant for those with average or larger builds with centrally located stoma and adequate clearance on all sides. Comes in Green Neoprene rubber