Dream House Luxury Outdoor Waterproof Four Season Family Camping and Winter Glamping Cotton Canvas Yurt Bell Tent with Mosquito Screen Door and Windows Different sizes: diameter 3m, diameter 4m, diameter 5m and diameter 6m for choice Ground sheet material: 1.2 lbs/10ft2 (540g/sqm) PVC Center pole material: diameter 1.5in (38mm) x thickness 2/25in (2mm) galvanized steel tubes Door pole material: diameter 3/4in (19mm) x thickness 1/25in (1mm) galvanized steel tubes Tent zippers: please use the cloth to cover the zipper closely, especially in rainy day, so the rain won't leak in from zipper around the ground. <span class="a-text-bold">Four-season Tent:</span>An integrated, heavy-duty zippable groundsheet allowing you to roll the sides of the walls up on a hot summer&#039;s day and to let the wind pass underneath. There is also a stove hole on the sidewall so you could place a camping stove to keep warm on the winter season. <span class="a-text-bold">Mosquito Screen:</span>Both door and windows are equipped with the screen meshes to keep bugs out. <span class="a-text-bold">Ground Sheet:</span>Heavy duty PVC ground sheet that easily wipes clean with a duster. <span class="a-text-bold">Carry Bag:</span>All packs down into a matching cloth bag. <span class="a-text-bold">Stitch:</span>Double stitching all around and reinforced key points. <span class="a-text-bold">Guy ropes and tent pegs:</span>Diameter 9.8ft (3m) bell tent comes with 10 ropes and 20 pegs,Diameter 13.1ft (4m) bell tent comes with 12 ropes and 24 pegs, while diameter 16.4ft (5m) and diameter 19.7ft (6m) bell tent comes with 14 ropes and 28 pegs. <span class="a-text-bold">Windproof grade:</span>Our bell tent is against 6 degree wind i.e. 30miles/hour. We recommend not to use the tent if the windstorms is heavier than 6 degree. <span class="a-text-bold">Maintenance:</span>Keep the tent clean and in bone-dry conditions when not using it. <span class="a-text-bold">ATTENTION:</span> The cotton canvas tent is waterpoof on its own, it is alright to resist the light and moderate rain. The extra roof tarp will help the tent resist the heavy rain, it is optional. please do NOT purchase the roof tarp separately if you don&#039;t have the bell tent, because the roof tarp does NOT come with any poles, it is only usable simultaneously with our bell tent.