The Vango Groundsheet Protector is an invaluable addition to extend the life of your tent. Not only does the Groundsheet Protector help stop small tears on the base of your tent from stones or thorns, it also allows you to map out your pitch before getting the tent out the bag and gives you a clean and dry surface to pitch and pack away your tent. Vango Groundsheet Protector - GP150 - Mokala 450-Black · 100% PE - Uses durable 100% PE construction that will last and is easy to clean · Folds Away into Compact Carry Bag - Easy to transport and helps to keep tent clean · Keeps Tent Groundsheet Clean - Easier to pack up camp and saves cleaning tent · Marks Position - Marks intended pitching position.