Great Unopened Set of 4 Keystone Franklin Inc (KF Brand), Ft Washington, PA. USA 2" Diameter Wheel Stem Type ROLLER CASTERS - NEW MINT IN ORIGINAL PACKAGE, as shown. Part # 2642 Made of Metal & Plastic. No nicks, dings, cracks, chips or discoloration visible. On back directions: "Roller Caster for light weight household furniture. New Installation: 1. Drill a 3/8" hold in exact center of each leg to depth of caster stem (where casters have not previously been installed). 2. Remove sockets from new casters and hammer into holes until saw-tooth edge engages the wood securely. 3. Insert caster stem and press in until it locks in place (where casters have previously been installed).