Check the listing for details. Micro Bearing Washers for Knife Pivots - (Select Size) - (Stainless Steel). Condition: New. Listed at 7.55 USD. Micro Bearing Washers for Knife Pivots - (Select Size) - (Stainless Steel) - (1-5 Pairs) - for Folding Knife Repair & Upgrade These are stainless steel micro caged bearing washers. They are specially designed for creating the maximum friction-free contact between blade and liner on folding knives. These are high precision, well made, and extremely durable. Each stainless steel ball is caged within its own micro setting carriage. These are part of the main washer bezel and are balanced by a full distribution of similar ball settings. With heat-treated balls and bezel, each washer is able to withstand countless openings with smooth precision and straight blade alignment. These are as smooth and stout as it gets. For more knife making kits, knife making supplies, and sheath making supplies, see "https://www.ebay.com/usr/ckkindustries"