Stainless steel will not rust-just taste your cocktail ingredients.Material: thick stainless steelFunction: Gifts for the kitchen and barEntertain your friends-ideal for home or professional use, creating masterpieces at home.Materials-made of food-grade stainless steel will not rust or leak.Material:stainless steelSize:Unassembled part height: 13cm, 14.2cmMinimum diameter: 5cm, 6cmMaximum diameter: 8.2cm, 9cmError about 1cmConversion:1inch=2.54cm, 1cm=0.393inchesWarm Tip :Please be reminded that due lighting effects, monitor's brightness/contrast settings etc, there could be some slight differences in the colour tone of the website's photo and the actual item.Item Measure by hand, it could be 1cm different,your kind understanding will be much appreciated.Due to the difference between different monitors, the picture may not reflect the actual color of the item.