This clips is made from high quality materials and is very easy to apply to the foliage wires. They are used to clip bird, insect and hail nets together as well as clipping wires together. The 2 small "studs" hold one side of the clip in place on one of the wires and the bright orange colour makes it easy to see the clips on the wires when applying or removing them. Easy to apply. No tools required. No training needed. Labour saving. Time saving. Re-usable.