One-Way Perforated Vinyl Privacy Window Film Adhesive Glass Wrap Roll (5ft x 54") Acrylic-base adhesive is easy to apply and remove. Requires no previous wrapping experience. Micro-perforated surface allows for one-way vision; see through the black side, not through the white side. Protects commercial store displays and helps to prevent break-ins, thefts and vandalism. Easy clean surface is a breeze to maintain and air-release adhesive makes the film simple to replace is vandalized. Grime and scratch resistant surface lasts 4-7 years on outdoor surfaces, up to 10 on indoor surfaces.