*It does not produce false markings. It works on wet, saliva-contaminated occusal surfaces, but is not brittle. *It is very tear-resistant, and has virtually no elastic memory. *AccuFilm I is single sided supplied in 280 pre-cut strips 7/ 8" wide, in black, red and green colors. *AccuFfilm II is double sided, supplied also in 280 strips, in colors red / red, black / black, and black / red.