Improve Poor Posture - Ergonomic design. This footrest for under desk features an ergonomic design that provides maximum comfort and support for your feet, this footrest is an excellent option for those looking for pain relief and a more comfortable work or relaxation experience. Upgrade Double-layer adjustable height. The footrest has two layers that can be adjusted to your preferred height, ensuring your feet and legs are always in the perfect position for optimal relaxation and pain relief. Vibrating Foot Massager Foot Rest for Under Desk with Vibration massage can stimulate foot and leg tissue, and help relieve soreness caused by being sedentary or standing for a long time.