<b>Full Protection：</b><br>Drop-proof, shockproof and dust-proof, especially four reinforced corner provide extremely strong protection. Hard Cover with Special Protective Design Excellent for Outdoor Activities. Q1: How to install the phone case? <br> STEP 1.Please open Silicon Button which near the Volume button to remove the outer silicon layer. <br> STEP 2.After removed the outer silicon cover,then open 2 key buttons on the side of the plastic case step by step to put your phone in. <br> STEP 3.Finally,install it back.Check all the button buckled well. <br> Packaging: Only one case included as picture. <br>