The 16 inches Holographic champagne bong has a 5mm thickness and a base diameter of 4.9 inches. It features a double showerhead perc, which allows for a smoother smoking experience. The bong also includes a 14mm bowl. The holographic champagne design gives it a unique and stylish look. Overall, this bong is a great addition to any smoking collection and is perfect for those who want a high-quality and visually appealing piece.