Click to expand Tap to zoom metro-5mesd-super-erecta-conductive-swivel-non-marking-caster-5-dia by Metro $67.45 | / SKU M-5MESD 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart The Metro 5MESD Super Erecta® Conductive Swivel Non Marking Caster are non carbon loaded and will not mark ESD-Safe Floors. 200 lb. load rate.