My Security Sign inside glass window decal, legend "ALL ACTIVITIES MONITORED BY VIDEO CAMERA" with graphic. These colorful decals stick on the inside of the glass. The adhesive is on the front of the label. Your graphics, however, are read from the outside. Clear material with printed graphics. Labels use a mirrored print. GlassPal window decals are made from polyester and easily resist heat and UV. Windows get hot and these tough decals are proven to last. Decals are easy to apply. Simply pull back the paper and press the adhesive side to a window or glass door. Labels come in both front stick and back stick. Choose the decal with the right adhesive for your office door, sliding doors or cabinet doors. Signs last 5 plus years outside. Permanent adhesive. Signs last 5 plus years outside, GlassPal window decals are made from polyester and easily resist heat and UV, Typical maximum temperature 168 degree F. Label is transparent/translucent and does not block vision. Measures 5-inches width by 8-inches height. Red/black on white color combination.