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

Step 1: Materials

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

Step 2:

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

Step 3:

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

Step 4:

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

Step 5:

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