I wanted to know is this work?

 

It looks like it would. I've just been buying new keys at $80 bucks each.

 

I presume those are from Amazon ? I bought those and they work fantastically, I did have to use a small razor sharp blade and some sandpaper to make that small piece wider in order for the metal key to fit through it, which was a bit of a bother, but well worth the alternative of buying through a dealer. We've had ours for about a year and they're holding up very well. I bought one each for both of my keys since both had broken, and another set to save for the future.

 

Key Fob Shell
I purchased a two pack from Ebay ( see attached picture ) and it worked great.

 

The last time I bought a replacement key I bought the eternity key from my Lexus dealer. Much stronger materials and guaranteed for life.

 

The one on Amazon with the 4 screws is the most robust. I went through 3 of those replacements before getting a 2-pack of the 4-screw version (kinda ugly). I am on 2-1/2 years on the 4-screw one and it still feels sturdy.