Not all inversion tables are created equal. Any company can claim that an inversion table is "high quality" or "safe, but what does that really mean? See for yourself why over 2 million people have put their trust in Teeter Hang Ups. UL Listing – The UL Mark provides you with peace of mind, knowing that every single product bearing this symbol has been tested & certified for safety & quality. Teeter Hang Ups offers the only inversion tables listed to UL 1647, a standard that evaluates inversion tables according to real world" use. Rated 1 in Comparison Study – An engineering group tested competing inversion table brands using UL requirements. Teeter Hang Ups out-performed every brand across all categories of evaluation, from functional endurance to ease of assembly. Compare Teeter against the rest. Built for Safety – Teeter Hang Ups is designed with reliable functionality in mind, from heat-treated steel for structural integrity to auto-locking hinges that securely anchor the bed to the base. Since 1981, Teeter has maintained a reputation as the trusted quality leader in the inversion industry. Built for the Benefits – The EP-560 features precision balancing for ultimate control, a patent-pending Comfor Trak Bed that flexes with the user for better joint mobilization & accommodates accessories to enhance the user experience, plus built-in Stretch Grips for added stretching & decompression. 5 Year Warranty – Backed by an industry leading 5-year full warranty.