great american products san francisco 49ers 75th anniversary 10oz. stealth wine tumbler great american products the san francisco 49ers are celebrating 75 years of amazing football and you're absolutely pumped. commemorate this monumental milestone by adding this 10oz. stealth wine tumbler to your collection. the bold graphics will make this one of your favorite items in your kitchen, helping you remember this special san francisco 49ers season for years to come.