If you like skull rings then this one will surely attract your attention. Made from 100% sterling silver, this is a nicely polished and well designed skull mechanic wrench ring. The upper part of the skull appears to be in flames, and the sides of the ring are particularly thick, making this a very solid ring. Either side features the top part of a mechanic wrench, which crisscross at the back of the skull. This is undeniably a very original design, which is what makes this biker ring quite unique. This ring weighs 21 grams, and it is medium size, measuring 25mm x 28mm.