Waterproof and Sweatproof Men's Necklace - 5mm Mariners Chain 316L Silver Stainless Steel Necklace for Men - Jewelry gifts for him, dad, son

For reference model is wearing the 20 inch chain.

Chain width: 5mm
Links: 5mm x 8 mm
Clasp: Lobster Claw
Available in: 16, 18, 20, 22, and 24 inches. (choose from menu)
Material: 316L Waterproof Stainless Steel