These were made use of on the steed an wagon beer delivery's to drop the keg or cask of beer off the wagon without breaking it open. Made from hemp and usually cork inside to take in the shock. They had numerous differant names most common is beer bumper and extremely hard to find today as many were recycled on watercrafts etc in later years. Center mat section is 20" long, 16" large and 7" thick hanndles are 9.5"long weighs approx 15 pounds is in great shape send out telephone number if interested to many gmail frauds here now $150 dollars or an extremely close offer ... ... Thanks.