Standing on cold and hard floor surfaces for long periods is one of the most common causes of physical fatigue and muscular pain for any workforce. 
Resultant backache and swollen or stiff joints can often mean debilitating pain - but also, long before that, as fatigue sets in, concentration is reduced and the risk of workplace accidents increases. 
This Anti-fatigue workstation mat is a solid rubber 'cushion' for the floor where workers stand for long periods, giving well earned relief for hard working feet.