>>1675730What's the purpose of the brass spheres?
The execution of the design is great, nice and tidy work.
Only real downside I can see is having to change out the inserts, I could imagine that being a little tiresome if someone wanted to do reps at each setting. I does looks like you've made it nice and easy to swap them out though.
I could imagine seeing these in a gym shop at around $50-70/pair.
Are you making them by hand or using a CNC?