The Hardin Tumbleweed/Dark Green CarabinerDescription It's time to replace that overbuilt climbing carabiner on your hip. The Hardin is our drop forged carabiner with a modern aesthetic and a solid construction that will keep your keys and your valuables secure and readily at hand. Made out of 6063 aluminum, with a two compartment design, a strong spring loaded gate, and a broad palette of available colors, the Hardin is the perfect daily companion for your jeans or backpack.