Black Steel Key LoopWhy It Made The List This handsome, minimalist key loop is a clean, engineered take on an everyday object, machined from stainless steel and finished with a 4 m tungsten carbide coating that is nine times harder than standard steel. The loop itself uses an ultra high molecular weight anti ballistic cord that's fifteen times stronger than steel by weight, and keeps keys lying flat so they sit neatly in a pocket instead of bunching or jingling. The