Pouring (wide) end diameter = 1-5/16" (33 mm). Insertion (narrow) end diameter = 3/8" (9.5 mm). Fits all bottles 4oz and under sold by Eclectic Supply. Stainless Steel. Easily transfer your essential oils into smaller dispen...

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Pouring (wide) end diameter = 1-5/16" (33 mm). Insertion (narrow) end diameter = 3/8" (9.5 mm). Fits all bottles 4oz and under sold by Eclectic Supply. Stainless Steel. Easily transfer your essential oils into smaller dispensers.

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