I have these sandbagsthese sandbags by Radien sports and I LOVE them. They’re roll tops so they can be adjusted. I made multiple 20lb and 10lb sandbags with these contractor bagscontractor bags filled with pea gravel. I used two contractor bags for each and zip tied them closed. I even got some fat grips to add for grip training for. I’m a huge fan. I find this setup extremely versatile when combined with Olympic Rings. Honestly can reproduce most workouts. I spent a really long time thinking about this and I’m super happy with the results for price and convenience. Hope it helps.