Targus 4Vu Privacy Filter Screen for 12-Inch Microsoft Surface Pro 3 (AST012USZ) Protects private information with constrained viewing angles to 30-degrees from either side Blocks screen glare to help reduce eye strain Over 12% brighter than competitive solutions for greater clarity and visibility Glossy or matte sides to suit your viewing preferences Reusable silicon adhesive strips for quick and easy installation 1 year limited warranty