This is just a case for your apple pen. My iPad case didn’t have anything to hold my apple pen so it kept falling off since the magnetic connection wasn’t enough. So I just modeled this case so I wouldn’t lose my apple pen. For the hinges I just used a couple of nails and to keep the case closed I just used a magnet. The magnet is pretty strong so if you make this only use one. Must design could use some cleaning up but I decided what I had was good enough to work. Here’s a link to the magnets. https://www.amazon.com/30-Pack-15-6-5-Rectangular-Magnets/dp/B077BWCC8D/ref=sr_1_14?keywords=Magnets&qid=1579576295&sr=8-14