Prepare yourself well for the installation of full extension slides. They don't come with instructions, but after doing some personal installation research we found a tolerance of 1/16 inch, which isn't that much! My husband is a carpenter and we couldn't install and move them smoothly. Although we couldn't get it to work properly, the company quickly offered us a replacement. We refused a new set but they promptly refunded us and we are very nice and sorry for the lack of instructions. This is the only reason I gave it 5 stars and hopefully others will have an easier time with the actual installation.