Very similar to Invisi-Grass Original the Ultra version is protected with a Flame Retardant/Water Resistant treatment. We offer 3 different colors to match any type of surrounding. Mix and match to find the perfect blend of cover. Works great for layout blinds, ground blinds, boats, pits, and anything else that you need to dissapear. With the addition of some natural vegetation, this can make for a deadly combination. Sold per bundle aprox. 2lbs.