Stainless steel is the no-nonsense option. Hard-wearing, non-corrosive, and low-maintenance — it handles the outdoors, salt air, and daily knocks without complaint. Available in 9mm — 316L surgical-grade steel is biocompatible and suitable for sensitive skin. Won't rust or tarnish in typical Kiwi conditions. Solid weight and a clean look without the cost of precious metals. If you want a tough, good-looking ring that asks nothing of you in return, stainless steel fits the brief.