Simple to install and it works! Mine is a little twisted (slightly tilting left) but I believe that is down to my partners installation more than the product itself! Much more secure than the plastic pop out piece that came with the viv, and a lot better than other types of lock I've seen listed as universal fit!
No problems, everything went smoothly. Very happy with item. 10/10.
Everything was delivered on time ans in great condition. Great variety and 8 definitely buy again