Strength / Weight Training

My wife got these: https://www.blkboxfitness.com/collections/kettlebells-dumbbells/products/blk-box-competition-kettlebells-2-0

We’ve got 8 to 20kg at the moment - unnecessary but we like the pretty colours.

The difficulty of home weight set ups is that even if you are strong as fuck, upper body stuff is going to use much lighter weights than lower body.

Up to 20kg could be a good start, but might be worth doubling up on some of the higher weight ones for lower body work. Can always buy more later.

Might be worth just getting a day pass at a local gym, having an idea of the movements you want to do with the kettlebells, and seeing where you're at with them, as a guideline for what stuff to start with. Can always buy heavier ones when you're stronger.

What size DBs are you/your wife using?

They might be different but they're still sorta the same.

If you can curl 10kg DBs, you can curl 10kgs on the KBs. You'll do more with the KBs so I'd say start with what you can lift already.

My two cents in case helpful…

I started with kettlebells in lockdown and after a fair bit of research, bought a standard Rogue 16kg. I’ve since added a pair of competition style 12kgs and a pair of 8kgs from Wolverson.

I’ve found the 16kg the most useful all round (for me), adding the 12kgs and 8kgs for higher repetition pressing movements. I did have a 20kg for a while but didn’t use it much. I prefer the standard shape as I find the added size of the competition style can make them harder to hold in some movements like the goblet squat.

Echoing dst2’s comments – I think an 8kg and a 12kg might be a good start. I found the 16kg surprised me at first and took me some time to master. Kettlebell weights don’t translate like-for-like with dumbells.