These are awesome. The fit Yeti 30 and 24oz tumblers perfectly as well as beer/soda bottles/cans. You will find that getting a 5 3/4" hole saw is challenging at the local box stores. That size was not in stock anywhere HD, Lowes, Northern Tool or Harbor Freight. 5 5/8" is usually in-stock and these fit perfectly into 5 5/8" hole. It's tight like a glove so you'll need to spray a little WD40 on the exterior and they slide in nice and tight. Perfect fit with no need for caulking or sealant. I installed these in my center console so I needed to route the drains with tubing into my live well so as to not have water draining onto my batteries. The tubing you need is 3/8th ID.

These are different because they are a Marine product. So they should be 316 grade Stainless Steel or better. The easiest to tell? Put a magnet to it, like 304 S.S. which is food grade they should be non-magnetic and there again quality prevails through Amazon because these are non-magnetic. Oh, one note, if you know nothing about salt water & marine dealers try walking into a store & pricing these. If you don't faint when you see the price you will run, not walk out of the store. Don't forget a small magnet to test the product because if its magnet its more than likely to be 308 Stainless with less than 1% nickel and its going to rust. Amazon is still number one. These were a great buy!

I accidentally knocked one of my expensive West Marine ones overboard. This is the same size and quality, and this time I use the double sided tape it came with to keep it in place. Much better price, too.

These cup holders are awesome!! They are made of excellent material, and look great. These cup holders will accommodate a soda can, up to a large fountain drink from a fast food restaurant. Both cup holders have double sided tape at the rim on the underside, which keeps them from vibrating once installed. I highly recommend this product. Thank you!

I haven't had a chance to install these on my boat yet but that won't stop me from giving them 5 â­ï¸â­ï¸â­ï¸â­ï¸â­ï¸!
They are very well made and come with a foam seal and and a fitting on the bottom to put a hose on and drain away water wherever you want. They arrived on time were well packed and they are a great price.

Thanks for a great product.
Tim