Curve Right Symbol Sign Material:Diamond Grade 25+ If your roads have a

If your roads have a noticeable drop off as they transition into the shoulder

Size: 30x36

Other speed limit choices: 15  20  25  30

Size: 12x18

Signs are available in the following color options: Blue/White for Interstate Routes

Curve Right Symbol Sign Material:Diamond Grade 25+ If your roads have aSizes Available: 24x24, 30x30 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