Made of high quality stainless steel material,and featuring smooth surface finish, DNB cup drink holders are durable and are also easy to clean up. Dimensions: Top of cup: inner diameter: 3.6" / 9.2cm, outer diameter: 4.2" / 10.7cm, bottom of cup diameter: 2.8" / 7.2cm, overall height: 4" / 10.1cm. Perfect for marine boat, deck, game table, counter top, dashboard, seatback, sofa, theater seating, car, trailer, caravan, etc.