This reflective MUTCD R1-1 stop sign features high-intensity prismatic reflective sheeting for optimum visibility and UV protection coating. The stop signage meets MUTCD guidelines and can be used across different U.S. states for absolute safety and compliance. Sign Type Stop Sign 18”x 18" Stop Sign 24”x 24" Stop Sign 30”x 30" Stop Sign 36”x 36" Material Aluminum Aluminum Aluminum Aluminum Pack Sizes Pack of 1, 2, 3, 10 Pack of 1, 2, 3, 10 Pack of 1, 2, 3, 6 Pack of 1 Dimensions in (Inches) 18 x 18 24 x 24 30 x 30 36 x 36 Thickness 60 Mil 60 Mil 80 Mil 80 Mil Pre Drilled Holes ✔ ✔ ✔ ✔ Reflective Film High Intensity Prismatic Reflective High Intensity Prismatic Reflective High Intensity Prismatic Reflective High Intensity Prismatic Reflective MUTCD Compliant ✔ ✔ ✔ ✔ Product Key Features Construction: 60 MIL aluminum thickness. Bold and Apparent: The high-quality reflective sheeting and metal base of the stop sign enhance the overall visibility. Reflective Sheeting: The sign features high-intensity prismatic (HIP) reflective sheeting, which is the second-best type of reflective material and is 3 times brighter than the engineer grade. Visible Distance: HIP reflective sheeting makes the sign visible from 1,000 feet at night. UV-Protection: All stop signs for sale from Olanzu have UV-light-protection coating. Which helps maintain the color quality and surface under harsh weather and heat conditions. Product Lifespan: 7-10 years. Note: Please remove the protective film from the surface before installing the red stop sign.