ESDProduct Rubber High Temperature Mat Kit with Wrist Strap and 15' Ground Cord, 5/64" Thick, 3' Length, 2' Width, Blue (Pack of 8) Kit includes the mat, a wrist strap and a ground cord It has two layers - the top one is a blue static dissipative rubber layer laminated to a black conductive rubber bottom layer It offer excellent resistance to oil, grease and most common solvents This antistatic mat is very light compared to single layer and three layer mats RoHS compliant