I own the discontinued Dewalt DW703 compound miter saw and only occasionally pull it out of my shed to set up in the garage on a portable workbench when I have a project that needs to be done. Right now I'm working on replacing boards on my deck. I had been moving a second portable workbench and saw horses around to either side of the saw to support the extended lengths of the boards and thought that there must be an easier way to do this. I started pricing these DW7080 Support Extensions online but noticed that many of the stores listed them as "out of stock". Since amazon.com had them "in stock" I decided to buy two, before they also became discontinued Dewalt items. Amazon is excellent when it comes to shipping their products and I received mine in 2 days. Yes, they are expensive, but so was the miter saw when I bought it. Although these extensions do not slide underneath the saw for storage, for the occasional carpenter like me it won't be a problem to disassemble everything to put away until my next project. I was aware of the comments about the difficulties in inserting the self-tapping T-30 Torx/flathead screw to secure the supports but I had no problems with that after starting the screw with a flathead screwdriver and then tightening it down using a T-30 Torx hex bit inserted in to a  inch socket in to a 3/8 inch adapter attached to my ratchet. Dis-assembly and future re-assembly should not be a problem. If it wasn't for the price I would have given this item 5 Stars.