This Bottle Stopper has a certified FDA 304 18-8 stainless steel tip with silicone o-rings that will protect your excellent wine, balsamic vinegar, olive oil, liquor bottles, herbs, or bath oil. The wood has been turned from Stabilized Spalted Hackberry Dyed Violet from the USA. Due to the wood absorbing different amounts of the stabilizing fluid with the dye the color changes throughout the piece creating a beautiful design. The wood is turned to expose the beauty. It is appx. 1.25" dia. x 3.25"H. It has a multi-layer acrylic finish that will protect it for years. It is NOT dishwasher safe. A card with information about taking care of wood and the name of the wood is included with the purchase.