The SCS HGS1MEC Economy Cup Heel Grounder, 1 Megohm Resistor, 18 in. Conductive Ribbon provides one grounding sole and an elastic strap around the heel. The re-positionable configuration of the HGS1M-EC extends the life of the product. The elastic loop provides a secure and comfortable fit, and the size-adjustable material expands to fit most shoe sizes comfortably and flex during walking. This model offers a durable three-layer sole, an 18-inch conductive ribbon, and a 1 Megohm resistor. The wide sole offers additional surface area, allowing for a better path to ground. Lot coded for QC traceability. Heel grounders are UL listed.