No Thru Traffic Sign Material:Diamond Grade They make a great gift

They make a great gift and are a huge hit

make sure you have the correct reflective sheeting to meet federal standards

drivers won't know it

then just walk up next to their car

he will love it

No Thru Traffic Sign Material:Diamond Grade They make a great giftSize: 18x24 We make all our signs from . 080 thick aluminum. Other companies use steel which rusts, plastic which cracks or warps, or a thinner gauge aluminum (. 060 or . 040) which bends or buckles. Material Details We use 3M reflective sheeting and 3M UV resistant inks. 3M offers the following on their sheeting: 3M 3400 Series Engineer Grade Prismatic (EGP): Rated for 5 7 year outdoor lifespan 3M 3930 Series High Intensity Prismatic (HIP):