ENGINEERING GRADE REFLECTIVE - Red retro-reflective border and red-orange fluorescent center can be seen up to 600 ft away, as per the ASAE-276.4 standard.as the colors are quite bright and very reflective INDUSTRY LEADING DURABILITY - Slow Moving Vehicle Sign 14"x16"Perfect fit and well made,Unlike plastic,50 Mil thick High-hard alloy aluminum material will not bend, warp or crack.long lasting will not fade EASY TO INSTALL - Each Slow Moving Vehicle Sign has 2 pre-drilled holes for screws or wire ties(Sorry,you need to provide your own screws or ties.) 100% MANUFACTURER WARRANTY - Lf for any reason,you don't absolutely love your new sign just return it.We'll refund every penny (or replace it,if there is a problem).That's our guarantee to you! WIDELY USED - Slow Moving Vehicle Sign are often used for farm vehicles, golf carts, and road construction and maintenance vehicles，vehicles moving 25 mph or slower,Legal protection for you! PERFECT FOR SLOW MOVING VEHICLES GOOD QUALITY, REFLECTIVE Stands out in dim lighting when a light source hits it.