Weighted bag or weighted bag?

The weighted bag (bag filled with sand) or weighted bag (empty bag) is a small bag which once filled with sand weighs 5kg.
This bag will have side handles to allow you to throw and catch it for dynamic movements of physical preparation in addition to more classic movements such as squats, russian twist etc...
Why do we need you?
We don't know yet if we will market it filled with sand or empty.
Each solution has its advantages and disadvantages, it's up to you to tell us via the questionnaire which criteria are most important to you.