Waterproof Design -The saltwater spinning reel use quality silicone waterproof rings at 6 key positions, which are rustproof and corrosion-resistant, significantly extended service life. 13+1 Precision Bearings – Stainless steel sealed and Instant anti-reverse bearings of saltwater fishing reels, combined with precision machined zinc alloy tooth plate and brass tooth bar, super smooth and strong with a fine drag to pull in big fish.