<p>Trade size 35. Designed for double hung windows.04 inch diameter,.59 inch inside length, zinc plated steel, working load limit 106 lbs. Counter-balance chain for double hung window sashes.<br />Also for arc lamp chain, animal chain. Low carbon steel zinc plated. Do not use for overhead lifting Warning: Do not exceed the working load limits for chain or components.<br />Do not use for overhead lifting or hoisting. Do not use if the chain or components are visibily distorted or worn.</p>