Hey anons, I need some dumbbells. I can't really figure out what I should buy though. I was thinking about just getting two pairs, because I can't really see myself using the ranges in between. I need a 50lbs pair and a 30lbs pair. Any recommendations? I contemplated making my own but don't have the materials on hand to make any kind of reliable free weights and I'm sick of my concrete filled milk jugs. At worst I will have to spend money, at best I will have to spend money. I currently train with bodyweight and squat with concrete on occasion. I am passing some kind of threshold. Gotta add more weight.

tl;dr need a pair of 50 and 30lbs dumbbels, best kind or buys?