Privascreen Blackout Privacy Filter For 19.5" Widescreen Flat Panel Monitor, 16:9 Aspect Ratio 331-0718 The two K panels are

The two K panels are black resin

Polylactic acid (PLA) coated paper

and it's a great alternative to the hassle of fresh lemons

Package Includes: (4) Colored Markers

They are easy to transport and help maintain freshness

Privascreen Blackout Privacy Filter For 19.5" Widescreen Flat Panel Monitor, 16:9 Aspect Ratio 331-0718 The two K panels arePrivacy You Can Trust. Blacks out screen image when viewed from the side to prevent prying eyes from reading your screen. Crystal clear screen image from straight on view. Protects screen from scratches and fingerprints and is easy to attach and remove. Compatible with touchscreen laptops and monitors. Supports compliance with privacy regulations including HIPAA. Package Includes: Double Sided Tape; Adhesive Backed Tabs