The bar comes bundled. Of course you have them first roll and a little pull / push into shape.
But has this been going. There is double-sided tape on the back of the bar.
So actually measure only the bar, then cut off (goes with a sharp knife) pull the tape and press on / stick to the countertop protector. Done. Made easy and fast.
Oh on the corners come on it still the enclosed caps. Is somewhat tricky but you get it back at some point.
There is a kind of rubber lip on top and bottom of the bar. This prevents the liquid passes through the bottom or similar if you spilled some time in the kitchen. Class.
The tape sticks quite good and keeps me so far still. (1 half a year now about)
Conclusion:
Great, solid bar that looks good and can be installed without problems by non-yourselfers.