The new FBS mini signs are made of laser engraved two-colored synthetic material and come with a adhesive film on the back. All signs are made in the scale of 1:12 trying to bring some realism to your fingerboard spot.
EMERGENCY EXIT ONLY - KEEP AREA CLEAR AT ALL TIMES
Size: 30 x 21mm (1.2 x 0.8 inch)
The adhesive film on the backside is super strong and works on pretty much all plain surfaces. In case you want to remove the sign again, I recommend you just cut off the corners of the protective foil instead of removing it completely.