4-1/2"L x 4-1/8"W x 3"H American made Conductive ESD Plastic Bins protect your electronic components from typical electromagnetic interference (EMI), electrostatic or induced fields. The conductive material on polypropylene bin provides a barrier which these fields cannot penetrate and prevents the build-up of electrostatic charge. Bins are permanently conductive and are unaffected by washing with normal cleaners. Molded from a carbon filled copolymer polypropylene material with a electrostatic decay rate at less than 0.1 second that meets military specification Mil-B-81075B. Its surface resistivity is less than 10⁵ Ohms-per square. Easy access to stored items with hopper front bin and label holder provides fast identification. Reinforced side walls and wide ledge allow high stacking on benches or shelving. Be sure all units are properly grounded according to your use. Color is Black.