Bertech ESD Mat Kit with a Wrist Strap and a Grounding Cord, 18" Wide x 24" Long x 0.093" Thick, Gray Made 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 Single Layer Vinyl Material