A collaboration between Tuff Writer and D22 Manufacturing, these aluminum carabiners are precision machined in the USA (sunny Phoenix, Arizona to be precise) from aerospace quality, 6061-T6 aluminum. Taking 6 separate operations to machine each piece from a solid block of aluminum, these stunning non-load rated carabiners are exceedingly strong, light-weight as well as corrosion resistant. These are the perfect accessory for your key-ring, gear bag or just by themselves. The Lumi-Cord insert glows all night when charged with ambient light and the stainless swivel is a perfect place to attach a key-ring or small gear.