Keep Left Symbol Sign, MUTCD R4-8 Material:High Intensity Prismatic That's because our speed limit

That's because our speed limit signs are made with 3M reflective sheeting and 3M UV resistant inks

are made right here in the United States

15 mph is too fast

And that means that a speed limit 40 sign must have a minimum of HIP reflective sheeting

MUTCD Info

Keep Left Symbol Sign, MUTCD R4-8 Material:High Intensity Prismatic That's because our speed limitThe Keep Left Symbol is used when the traffic pattern needs to go around an island or median to the left of the median. Size: 24x30 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