I've used a few of them I think I have a couple left . The last ones I bought from a fellow at ETAR he had a coffee can full and was selling them for $35. They work good not to hard to install . The last one I did I inset it into my overlays and you couldn't feel it on the front of the bow . I've made the locket socket but didn't like it much and I have some bow bolts that work good but you need a mycarta or g10 handle with the bolt .