Thirsty Rhino Stainless Steel Mini Flask Funnel / Essential Oil Bottle Funnel Heavy Duty Polished Stainless Steel Beaded Chain for Storage Convenience Pouring (larger) Diameter of 1-3/8" (37 mm) Inserting (smaller) Diameter of 3/8" (8 mm) Easily transfer your essential oil or favorite alcohol into smaller bottles or flasks