These are large signature vases from Khalil Mamoon. The diameter of the opening is 3.7cm or 1.75 inches, which fits a size 30 vase gasket. 12 inches tall. Although these are not Bohemian, these are of better quality than most of the KM bases out there. The glass is very thick. They are 3 full pounds whereas the traditional KM bases are 2.35 pounds. The wide stripe around the center will vary from base to base so the one in the picture may not be what you receive. Some will have pharaoh designs while others will have a pattern but the stripe sizes will all be the same.