Vacuum Bag Adapter

We have just been on a 2 week holiday camping and this has been invaluable.
My wife bought some vacuum bags to put our clothes and sleeping bags in.

She was intending to use the vacuum cleaner to suck all the air out, but we were not going to be taking the vacuum cleaner on holiday.

To avoid not being able to suck all the air out and have less room in the car, I decided to make this adapter for the air pump we were taking, this way we knew we could get the same amount of air out and get t