Folding knives have moving parts that are in constant contact, which can prevent a knife from opening and closing smoothly. To keep those areas clean, there’s the EDCi cleaning solution, which aids in rust and corrosion prevention. Safe for any kind of finish—from Cerakote and DLC to PVD and anodized finishes—EDCi is also non-toxic and non-flammable. To apply it, rub it in with the microfiber cloth. After, you're left with a clean, dry surface that won’t attract dirt, dust, or fingerprints. Once you’ve cleaned your knife, use the Nano-Oil 10-weight lubricant. It adheres to sub-microscopic metal crevices, resulting in next to no friction at all. Put a drop or two on the pivot barrel, detent, and bearings or washers, and your folders will flip open like new.