Optional Movement Left Sign railroad crossing We use 3M reflective sheeting

We use 3M reflective sheeting and 3M UV resistant inks

The Keep Right Symbol sign directs traffic around a center lane divider or island

A Left Turn Yield on Green sign informs drivers that even though the light is green

Use this Double Right Turn arrow sign when you have two lanes of traffic

The Keep Left Symbol is used when the traffic pattern needs to go around an island or median to the left of the median

Optional Movement Left Sign railroad crossing We use 3M reflective sheetingSizes Available: 24x30, 30x36 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