Modular WorkSafe Light ESD is designed for drainage in challenging industrial environments where static discharge is a problem. Totally conductive throughout, it effectively keeps workers comfortable while draining static away before it can harm sensitive equipment. Great for individual work areas, yet it has interlocks on two sides so multiple mats can be snapped together to form virtually any configuration. 3' x 3' with interlocks on two adjacent sides. For maximum effectiveness, ground the mat and keep the surface clean.