Wow! What a well built mount. Nothing flimsy about this! The unit comes with a "Jillion" pieces of hardware to fit the brackets to just about any big screen TV on the market. I had alot of screws, washers and spacers that can now go in my garage for future projects. Instructions are great and even comes with a small level. Also included are 6 large lag screws and washers to mount the TV to your wall studs. Premier mounts claim that this mount will fit a 37"-50" Flat screen TV. When I looked at the specs it appeared that it could accomodate a 55 inch TV (which is what I have). I called the technical guys at the manufacturer and stated that it would fit my TV (Samsung LN55B640). Weight limit for the mount is 125 pounds so I was way within the limits. Bottom line nice mount. My TV is built in so it's nice to be able to move it in and out, side to side and up and down in order to access my connections and USB ports. I would highly recommend this unit. Oh by the way....as the instructions say...two people need to install this. It's pretty heavy.