Whether you are building a poker table or want to enhance the look of one you already own this silver vivid aluminum drop-in cup holder is the perfect solution. Not only will players have a place to store their drinks but you will decrease the chances of spills and unwanted stains on your table. These cup holders are also ideal for holding keys cell phones and other items during the game.Durable and rust proof each cup holder drops right into your table. This item is sold as a single cup holder.This item measures 3 inches deep and has a lip diameter measurement of 4 inches. The inside diameter is 3 1/4 inches. The hole for your table should be 3 3/8 inches.