Just like the pros use, these "Vegas Style" cup holders fit into any cup holder compartment 3-1/2 inches in diameter, keeping your drink secure. Fits any drink 3-1/2 inches in diameter or less. The classy stainless steel wont rust and is very durable and your customers will appreciate you for having them. 2-3/8 inches tall. No problem at all for 16 or 20 ounce plastic bottles!