Dover 2-Way Foley Silicone Urethral Urinary Catheter, 18 FR, 5mL - REPLACES 6165189.16" Length; 100% silicone Foley catheter eliminates latex allergy concern; Inert material is biocompatible, inorganic, non-porous, and non-toxic and will result in less encrustation, urethral irritation and stricture than latex versions; packaged in outer peel back pouch and easy-to-open inner sheath.