as per the manufacturer's specifications for this part

Surface: Non-abrasive (described as enabling ESD coating of smooth insulating surfaces)

Materiale: Kobber (Cu‑HCP 99

1/4" sekskantdriv

Sandal Active 2 ESD Str. 40 MIL4920121111 as per the manufacturer's specifications. The upper leather on the ESD approved Active is durable and washable microfiber. The 3D dry lining conducts moisture away from the surface of the foot to the second layer of the lining material and further via the upper structure of the footwear away from the footwear. The foot shaped full length Sievi Comfort sole provides better comfort. Durable and supportive, new shock absorbing sole.