Protect your electronic components from typical electromagnetic interference (EMI), electrostatic or induced fields with these molded, carbon-filled, copolymer polypropylene dividable grid containers. Surface resistivity is less than 10⁵ Ohms-per square. The conductive material provides a barrier which these fields cannot penetrate and prevents the build-up of electrostatic charge. Containers, dividers and covers are permanently conductive and are unaffected by washing with normal cleaners. Containers have a load capacity of 100 lbs. Dividers available to customize your box into compartments at 1-1/8" intervals and snap covers protect contents from dust or damage. Be sure all units are properly grounded according to your use. Color is Black.