Tumbl Trak™ 10 Ft. ExtensionDid you purchase an extra long poly bed when you originally ordered your Tumbl Trak? If so, and you are now ready to add on, the 10ft Extension includes everything but the bed. If you did not purchase the extra long bed, you can still add on to your Tumbl Trak. However, you will need to purchase a new bed. For example, if you would like to turn your 30ft Tumbl Trak into a 40ft, you would need to purchase the 10ft Extension as well as a new 40ft bed.