VSTN &reg; Microsoft Lumia 640XL Glass Screen protector - Ultra-thin 9H Hardness High Quality HD clear Premium Tempered Glass Screen Protector for Microsoft Lumia 640XL smartphone (1 pcs) Specially designed tempered GLASS screen protector for Microsoft Lumia 640XL smartphone Glass protective film, take you amazing look and feel. Rated 9H Hardness, making Screen Mate the world's strongest and toughest screen protector. 98% Retina Clarity and Touchscreen Accuracy.