Excellent Low Carbon Steel Chain for General Purpose Applications Frequently Used for Swing Sets, Borders, Crowd Control and Other General Applications Standard Finish: Zinc Plated or Polycoated Yellow Hallmarking: "C3" and "USA" on 5/16" and Larger Proof Tested Design Factor: 4 to 1 Packaged on Reels, Order Unit is "Each" Made in the USA Do Not Use for Overhead Lifting DO NOT EXCEED THE WORKING LOAD LIMIT