This is a brand new item from Whitecap Industries. This cupholder is made of 316 Stainless Steel and designed to fit the modern style Yeti Tumblers between 20 and 32 ounces and comes with a drain and rubber liner pre-installed. The rim of the cup holders is lined with 3M adhesive for a high quality installation and usage experience. The top diameter tapers down from 4.5" to 3", and it measures 5.5" tall.