The display protection made from specially hardened Japanese glass is only 0.4 mm thick, yet extremely hard, scratch-resistant, and features an anti-fingerprint coating. The display protection glass is produced through an elaborate process, ground with industrial diamonds, cleaned, polished, and subjected to multiple quality checks. The result is an extremely hard display protection glass of the highest quality, with nine times the hardness of conventional glass. Additionally, it is very easy to apply - the adhesive layer is made of silicone, which bonds with the smartphone display to prevent air bubbles from forming.