ErgoFoam XL Foot Rest for Under Desk at Work for Stools & High Chairs Chiropractor-Endorsed 2in1 Adjustable Under Desk Footrest Ergonomic High-Density Compression-Resistant Foam Nonslip Foot RestLARGER than other foot rests AT 7. 5" TALL, the ErgoFoam XL is the only foot rest specially designed for STOOLS and HIGH CHAIRS. FOR THE BEST SUPPORT POSSIBLE, your under desk foot rest should be CUSTOMIZABLE to your needs but many foot stools are THE WRONG HEIGHT and ARENT ADJUSTABLE. Made by the only foot rest brand endorsed by U. S. chiropractors, the ErgoFoam Adjustable Foot Rest ADJUSTS EASILY to the optimum height for your chair & leg length,