Ergonomic design to improve posture & circulation in the legs Floating tilt allows footrest to continually adjust its height for maximum comfort Non-slip rubber base keeps footrest in place & prevents it from moving Surface tread bumps massage tired feet Platform size 47.5cm x 34.5cm This footrest is an ergonomic solution for providing a more comfortable & healthy work environment. It has been designed to improve circulation in the legs & easeprevent lower back pain as well as improving general posture. The footrest has a floating tilt on the base which means the footrest continually adjusts its height for maximum comfort so you can tailor it to individual needs. The surface also features tread bumps which are ideal for massaging tired feet. The base of the unit is non-slip ensuring the footrest stays in place.