im currently deciding wheather to buy this 9 piece boxing kit from ebay

http://cgi.ebay.co.uk/ws/eBayISAPI.d...166021365&rd=1

but im worried that the bag isnt heavy enough, i want a strong and heavy bag so i can work up to it and not start of with a light bag and then change it later on.

if its not any good anywhere else to go to buy heavy bags?