1. SOFT CASE INSTALLATION - make small cut with a small blade, pull chain through the cut, insert the holding par, pull the "V" of the holding bar into the cut, install your phone to lock it in. NEVER DROP YOUR PHONE AGAIN!
2. SOFT CASE PUNCH INSTALLATION - with the included punch and your hammer, punch a small hole in the back of your case, insert the chain and holding bar and you're set.
3. HARD CASE INSTALLATION - using your drill, size the drill bit with the hole in the punch, drill a small hole in your hard case, insert the chain and holding bar and your phone is safe and secure.