All timber is sealed in a vacuum with acrylic resin, to make the most durable, and water resistant rings possible. They are all finished in marine grade epoxy for utmost strength and durability.
Tungsten Carbide is made via a lost wax casting process in an industrial mold. It has no seams, and is ranked upwards of 9 on Moh's hardness scale. It's literally used (and how I use it) to cut titanium. It's incredibly hard and durable.
Specs:
Band Width: 4 mm (pictured) or 8 mm Band Thickness: Circa 1.8 mm Fit: Comfort fit