3/8 Thick x 6' L Type 316 Stainless Steel Safety Chain
Small Metal Chain,Stainless Steel Safety Chains 40in (L) x 3MM (T) Long Link Chain Rings Light Duty Coil Chain for Hanging Pulling Towing (3mm*100cm-2 Pack) - Yahoo Shopping
CURT 48" Safety Chain with 2 S-Hooks (5,000 lbs., Clear Zinc) 80030 - The Home Depot
SeaSense Stainless Steel Safety Chain 5/16-Inch x 24-Inch with Quick Link, 2 Piece