Floortex's Advantagemat's help make your desk work space more ergonomic, by taking strain off of your legs and back, this is done by providing an easy-glide surface. The key reason chair users purchase floor mats is to protect a small or large area of flooring from indentations and scuffs caused by rolling office chairs, along with dirt and spills, therefore extending the life of your surface. For a more heavy duty chair mat, Floortex offer a polycarbonate and glass option. Overall Length: 48 Overall Width: 36 Overall Depth: 0.09