Interlocking static-control floor mats are made of conductive materials that prevent or dissipate the buildup of static electricity that can cause explosions or damage sensitive electronic equipment. Interlocking mats consist of tiles that connect to each other to create custom configurations in large areas or along walkways. Sometimes called ESD mats, static-control mats draw static electricity off workers as they move before the worker touches a surface that can cause discharge to happen. They are used near sensitive electrical or computer components and in areas with potentially explosive dusts, gasses, or chemicals. Interlocking mats are less likely to shift or cause trip hazards than individual mats that are laid next to each other to cover large areas. Individual tiles can be replaced when damaged.