Bertech ESD Heel Grounder Metal/PVC, Black Designed for an electronic assembly where static charge is a concern Used to prevent electrostatic discharge by safely grounding a person working with electronic equipment or at an electronic assembly facility Antistatic Heel Grounders are constructed from durable material These heel grounders connect the person wearing them to the ground via a proper floor mat or flooring material A buried 1 meg ohm resistor is standard.