Made from sustainably harvested exotic hardwoods (such as rosewood, padauk, ebony and walnut) which are hand carved and polished to a piano-like finish. The pour spout is made from the highest quality food grade stainless steel. The stopper is made from safe, non-leaching, heat resistant silicone which offer a nice snug fit in the neck of the bottle. Each stopper is 2 3/4 by 1 1/2 inches.