1Free Movement: The strap allows you to freely move in the labs or manufacturing environments without the restrictions caused by bands that keep you tethered to workbenches. 2Unique Flip Cup Design: The reversible cup design of ESD heel grounder can be reversed to double the strap's lifespan, giving you more professional and stable use. 3Versatile Sizing: Perfectly suitable for both men and women to wear in labs environments, these anti static heel straps can accommodate both small and large sized shoes. 4ESD Guard: Prevent static damage to electronic components, parts, and computers in labs or manufacturing environments by grounding and controlling static discharges. 5Enhanced Durability: These straps are designed for frequent daily use, wear resistant, aging resistant, not easy to damage, and will remain effective for a long time. 2 xStraps