Bertech ESD Two Layer Rubber Mat Kit with a Wrist Strap and a Grounding Cord, 2' Wide x 3' Long x 0.06" Thick, Blue Assembled in USA ESD Safe: Designed for an electronic assembly where static charge is a concern Kit includes a wrist strap with removable alligator clip and a grounding cord Resistant to degradation by inorganic and organic acids Made of Rubber Material