[Features] In the event of a disaster, the location of people and the number of evacuees can be accurately communicated to helicopters overhead. The included marker is heat resistant up to 70°C, so it won't melt even at high temperatures, and you can write on wet surfaces (e.g. rain), underwater, and in temperatures as low as -15°C. This is a large, highly visible sheet that uses hazard colors.
[Applications] For disaster prevention measures.
【specification】 Spare sheet (mm): 900 x 123 0 Sheet length x sheet width (mm): 900 x 2440 Marker material: Oil-based
