from the faq https://rain.works/faqs/ https://rain.works/faqs/ : "On average, a rainwork lasts 2 to 4 months. We have had them last up to a year under the right

from the faq https://rain.works/faqs/ https://rain.works/faqs/ : "On average, a rainwork lasts 2 to 4 months. We have had them last up to a year under the right conditions." "According to a representative at the Seattle Department of Transportation, rainworks are legal on public sidewalks because they are temporary, don’t harm the property, and we don’t use them to advertise anything." I think the intent was to find something more like a neat alternative to sidewalk chalk than to be a graffiti.