LG 49UM7100PLB. LG 55UM7100PLB. You will receive both legs, left and right and screws to attach it. To ensure 100% compatibility check your TV model from the sticker on the back of your TV. Below is an example.
I'm a bit disappointed with this TV. It seems slow to bring up the Guide and to scroll through it. On my ordinary TV I could scroll back through the Guide to see which programmes I missed so that I could search and watch them in my own time. The handset feels a bit flimsy and light and the button positions don't feel comfortable to use. I have another Smart TV and find the controls much easier to use, much faster to respond and the handset much more substantial. I haven't tried to use all the features yet mainly because the user guide is on-line, I may be a bit old fashioned but I like a physical booklet so that I can flip through it easily. Despite the negative points, this TV was very reasonably priced and I will hopefully get used to not being able to do things I could do on my ordinary Freeview TV.