Urocare Products Inc Uro-Cath® Molded-Latex Male External Catheter 30mm Diameter, Standard SizeThis male external catheters are twist-proof, funnel shaped catheters which range in size from 20mm being the smallest to 40mm our largest. Each Uro-Cath® is packaged in a window pouch with or without urofoam adhesive foam strips or uro-prep® protective skin wipes.