A smartphone stand that can be used when not in use. Vision test

I'm increasingly using smartphones and PCs, and I think that small letters are hard to see. Indeed how much characters can you see? I thought, if I wear glasses, I can see so far! Or, it is useful if you know that the size you see all the time has been hard to see recently. I thought I made it. Placing it at the corner of the desk is convenient as you can check everyday eyesight. I remove the legs and send it out. Because it is a hardware item that does not require a tool, please assemble it yourself. Size 15 cm x 6 cm x 7 cm Material Kibe = Pinnacle Hardware = Brass Chrome Plating Finish