Protektive Pak 37831 Buriedshield Dissipative Liners, 23-1/2 x 59-1/2 x 1/16 in, 10 EaProtektive Pak 37831 Buriedshield Dissipative Liners, 23 1 2 x 59 1 2 x 1 16 in, 10 Ea Solid fiberboard construction with a buried conductive layer Great choice for shelves and transportation carts, or for messy soldering applications Resists damage by hot soldering irons, solder, or flux Rtt of top and bottom layers: < 1 x 109 ohms meets worksurface recommendation of ANSI ESD STM4. 1 Thickness: 0. 060" (1. 5mm) Lead free RoHS compliant Made in the