All Botron cart covers are made to protect ESD sensitive components when being transported or stored from static charges and contaminates such as dust and dirt. The B171836G and B172848G both feature a dual layer design, constructed of a solid green static dissipative vinyl 10⁸ (outer layer) and a black conductive vinyl <10⁶ (inner layer). Both the B171836B (blue) and B171836C (clear) are transparent static dissipative vinyl with a surface resistivity of 10¹⁰ – 10¹¹