Purchasing a heavy bag

[Manos de Piedra]

I was looking to purchase a heavy bag that I can hang up at home just to keep fit as I don't get much time to go to the gym anymore. So I was wondering what kind of bag to buy, size and weight etc.

My main concern is the weight of the bag. How heavy should my bag be? I weigh 80kg myself and have a few years of boxing experience so I have a decent punch. I don't want a bag that is too light and I'm not sure how heavy the bags usually are.
If you guys have any tips, advice or recommendations please share.

depends how you gonna hang it (the walls , ceiling height, whatever) and your neighboors. Decent punch? If you punch properly, ideally, the bag should not really move much, just shake, otherwise you are pushing. So, 60-70 kg bag should be ok for you.

I'm looking to hang it from the ceiling.
Appreciate the info. thanks.