Bradley rugged butyl rubber inner tube. Part #19578. Great fun for river tubing the lake swimming pools and so much more! Rugged rubber inner tubes only. No fancy designs or colorful shelf box. Measures 48 inflated diameter at full inflation. Tube becomes firm at 44 . Continue to add air until tube has fully inflated. Short valve stem for safety and comfort. Valve cap includes a valve stem removal tool for faster deflation. Compatible replacement inner tube for Bradley 60 snow inner tubes or river tubes. Works well on their own for snow tubing river tubing or as a pool float. Popular for pool closing before the Winter. ***These are sold as bulk items so will not have retail packaging***