I bought one of these to use in my music studio. I have a 49-key Oxygen keyboard that used to stand end up on the floor and get in the way all the time. So, I bought one of these and attached the music keyboard to the laptop shelf. The music keyboard is, obviously, much wider than the shelf, so I used the supplied velcro pads which are easily strong enough for my "light" touch. If you have a heavy touch, you might need to attach it more solidly. I removed the integrated keyboard shelf that comes with the product as it does nothing for me. Now, when I need to use the music keyboard, I just pull it towards me and it sits just to the left and slightly above my computer keyboard allowing me to use both. When I am done, I just push the music keyboard out of the way giving me space to work with the computer. Really neat.
I am not sure why 18% of people who viewed this item chose the Lindy version. I am pretty sure they are identical in design.