TroySys 18'' Round 1/4 Inch Thick Flat Polished Tempered Glass Table Top Glass table tops to be used as glass tops or glass covers for existing table or base 18'' Inch Round Glass Table Top with 18'' Inch Diameter(1/8") This 18'' glass top has a flat polished edge This glass table top is tempered for added strength Round Glass table tops available in many sizes including: 12, 14, 16, 18, 20, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 36, 37, 38, 39, 40, 42, 44, 46, 48, 54, 56, 60, 72