Go Treads™ were invented in 1975 and were first mass manufactured and marketed in 1991 when Pinto, Inc., a privately held and family operated company, was incorporated. GoTreads™ rank high in customer satisfaction; no units have ever been returned due to defects in manufacturing or workmanship. GoTreads™ are sold worldwide. The new design has a noticeable change in the first section of the tool in that it is now hinged to allow it to flex and conform to various tire sizes. The gripping surface of the “PROFESSIONAL” tool is more aggressive and twice the thickness of the original Go Treads.