Black Lives Matter Juneteenth Day 2022 Yard Sign - Coroplast Juneteenth Black Pride Freedom Independence Day Yard Sign with Metal H-Stake. Economical and durable, our Coroplast Yard Signs are a staple of outdoor advertising. This Juneteenth Day Black Lives Matter Yard Sign full color direct printed graphics are vertically fluted for use with an H-Stake. Coroplast is typically used for yard, parking, real estate, and election signs. They are waterproof.