Item: US type G209 G210 G2130 G2150 shackle Size: 3/16-4 inch Original: Qingdao MingXiu Machinery Co.,ltd Material: carbon steel, alloy steel Technology: forged Safety factor: 4 times Surface: self color, hot dip galvanized HDG, electro galvanized EG, powder coated color coated Related product: chains, hooks, hammer locks, swivels