Extreme Max 3006.6599 BoatTector Vinyl-Coated Anchor Chain, 5/16" x 4' / Black 5/16" x 5' vinyl-coated steel anchor chain Working load limit: 2000 lbs. / Breaking Strength: 8000 lbs Dual enlarged end links Chain is galvanized for corrosion protection, then vinyl dipped to protect boat surfaces Perfect for use in marine anchoring applications