Hi! I'm Matthew Christian from Tampa, Florida and on behalf of Expert Village, today I would like to talk to you about the proper use and maintenance of a yard edger. As I mentioned earlier, this particular model is interchangeable and what I mean by that is this currently has the weed eater attachment on it. Rather than having to go out and by separate machine and a entire unit to do my edging, this unit is interchangeable and I can take the weed eater attachment off by undoing this clamp. I'll unloosen the clamp and then there is a spring loaded set pin that will press in and that allows me to remove the attachment. And quite simply, I just insert the other attachment that I am looking to use, slide it in, wait until the pin locks or pops out through the hole and then tighten the clamp again. Now it is ready to be used as an edger. Now most models like this that have interchangeable ends come with other ends that you can use other than a weed eater or an edger. Some models come with a hedge trimmer. Also, I have seen a miniature blower or leaf blower attachment for some of them. So they can be a great tool universal rather than having to buy multiple machines for different applications. It is one tool that does it all.