I purchased brand new less than two months ago the Slim Line 1, the left and right side cap window combo, 2.5"x4" window and 3.5"x5" window for each of my two machines. I just don't think it's what I need after purchasing it. I tried the left cap side window for one machine and that's it. Some windows still are wrapped in plastic. I would like to get most of my money back for these. If purchasing both sets (two clamping system with amaya xt adapter, two left and right side cap combos, two 2.5"x4" windows, two 3.5"x5" windows) price is $1100 includes free shipping. If I sell separate, price is $600 per machine including free shipping. These are firm prices. If you have questions, email me at [email protected].