1.Two Optional heights This under desk foot rest has 2 heights to match your needs. The foot rest's fabric is durable and easy to clean. The pillowcase can be easily removed for cleaning and reusing. 2.Ergonomic foot rest office Improving posture and blood circulation by holding your feet and legs up, which makes you feel more comfortable. Relaxing your legs and back when you work in the office or at home, even when you are playing game. Not only does footstools can correct sitting posture but also help relieve discomfort in the shoulder or intervertebral disc area. 3.Multifunctional foot rests The height can be adjusted manually in 2 different positions: 4.13' / 6' (connect two foot cushions with Velcro). It's easy to find the perfect position to meet your needs. You can also move the footrest cushion under your knees or ankles when you sit on the floor or lie down. 4.HighQuality Materials The filler is made of highdensity memory cotton with elasticity that fits into the your feet and supports them useful in the office, or you can bring footrest in airplane.