Boxing for cardio?

Hi, I was recently given a Boots punchball set, and I was wondering if anyone knew a half hour boxing routine that I could do with my set?
I plan to use it twice a week for cardio and I will use my exercise bike twice a week for cardio training. I also weight train 4 times a week, one bodypart a week.

Thanks!!!!!

Yeah it's a fastball that sways back and forth on impact, I was just wondering if anyone knew a routine for this piece of equipment?

Just pick combo of punchs like

Rigfht cross
Left hook
Right cross and do 3 mins then just work up to 10 sets of 3's with a min break between you will be fit in no time do this everyday as its not much vary your hand work. Becareful though as if you ever want to box really you should go and learn as doing it yourself will get you alot of bad habbits I am having to iron mine out now.

also: no offense, but if you are buying boxing equipment from boots, and are planning to use it properly, expect to buy new stuff soon. imo, go to/contact your nearest boxing/MA club or shiop and get some proper equip.
rob