I ordered two dividers from Lee Valley. I opened one and set it aside on my bench while I opened the second one. It sat there about a minute, and then the spring broke, all by itself. The dividers were priced at $30 apiece, but they don't seem to me to be worth that much money. I had to sharpen one of the points on the divider that didn't bust. I have sent three emails to Lee Valley, but so far have received no response. The net effect is that they have scammed me out of $30.