This listing is for a extra large inner tube. This inner tube is perfect for snow and River running. When inflated it is roughly 38 in tall with a 20-in hole in the center. This size is generally adequate for the largest adults. This tube has a very short valve stem. It's commercial sizing is 10.00 r20. This tube is new and has never been used. It will be shipped uninflated. Upon purchasing, this item will be shipped the same day over the following business day.