Hawaiian Koa Wood Inlay with Beautiful Blue Abalone Shell in Lightweight Titanium. Very Popular Koa Wood Men's or Women's Band Rings with Smooth Insides and Comfort Fit Titanium is the only element possessing the strength of steel, yet with a weight comparable to aluminum. Titanium has a dark metallic color, but is extremely lightweight. Titanium is the only element that offers the unique combination of beauty, strength, light weight and biocompatibility. Titanium will not bend.