Ring help

Last week I got a Bushnell 3.5-21x50 and I need to get some rings for it. It's my first 34mm scope and don't know what to look for. Would the TPS mediums work or would I need highs?

What are the measurements of each size of the ring choices? Base to bottom of the ring.

The mediums are 1.185 inches. I can't find the measurement for the highs. I'm not sold on tps, just the first ones I found on the swfa website

I really like their rings and have several sets.
Here is a picture of TPS rings on that scope mounted on a Horizon(Stiller) action..... Problem is I cannot remember if low or medium definitely not high and you can see I have plenty of barrel clearance

I will probably go with mediums just to be safe. My picatinny base extends further than yours and I don't want to go too low and the scope to hit the end of it.
And that looks like an awesome set up!

I saw this Youtube video and started doing it, helped me a lot. As for ring brand, I use DNZ one piece mounts and really like them.

That's a good idea. Now to find some playdough....