Inside measurements: 10 foot long, 6' 4 " wide, 2 foot medal height and 3 foot wood extension so 5 foot high total. Extension can be removed in about 5 minutes. Not rusted. Not dented up. Really good tires. really good brakes. lights work. Jack is perfect. Battery is less than a month old. 2 axles. 2 5/16 ball. Hydraulic cylinder does not leak. 7000 GVWR. No sales tax.