Dale Adams Enterprises' Tail Bone Rough Rider mechanic's stool features 5" diameter wheels to roll effortlessly over air hoses, drop cords and debris without tipping or flipping. Its unique bucket seat and tripod base provides a naturally stable working platform that is the most durable in its class. The seat and base are molded of the same polymer that's been used for the durable Bone creepers. The 12" seat height is appropriate for many workshop chores. The Tail Bone Rough Rider has a 250 lb. rating per wheel and a seat height of 13”, making it a better option for outdoor use. This stool comes with a 350-lb weight capacity and a limited warranty.