XYUN Olephobic & Lyophobic Premium Tempered Glass Screen Protector for Ipad Mini (0.4mm) - 1 Pack - Retail Packaging SURFACE HARDNESS:The surface of the tempered glass has a hardness of 8-9H,three times stronger than regular PET film,Even shard objects such as knives and keys will not scratch the tempered glass.(Best Clarity & Strong Surface Hardness (8H-9H)) WHOLE TRANSPARENCY:border round angel tempered glass is 0.4 mm thick and made with chemically treated,transparent tempered glass.(Very slim as only 0.4mm thickness) Rounded Edges: more durability & no chipping Oleophobic Coating:The Tempered Glass has an oleophobic coating that prevents fingerprints and other contaminants and makes the film easy to clean . Delicate Touch:The tempered Glass is coated on the back with a strong silicon adhesive that makes installation easy and attaches the film firmly so as to affect the touch screens sensitivity.