Automatic Door Closer

I have people coming into my room nonstop all the time so I thought I would make a door closer that was easy to make

What you will need to make this is duct tape, string of some kind, PVC pipe, and a weight

So first get your PVC pipe and tape to to the side of the door to where the weight will drop down and not interrupt the door

Put your string through the pipe and tie the weight to the one side

Get the other part of the string and tape it to the back of your door and make sure there is enough string for the door to open fully

Now your done and if you don't like the look of the duct tape then put stuff in front of it to hide it