These Gothic Quik-Align® numbers and letters are made of pressure sensitive, matte finish B-933 vinyl, which is pigmented throughout for durability and fade resistance. The industrial-grade material helps to resist temperature extremes, abrasion, and common solvents. The aggressive adhesive helps to secure the letters for years when applied to clean, dry surfaces. The self-spacing, self-aligning, diecut characters also interlock, which helps to ensure perfect spacing and professional appearance.