VEVOR Pop up Bubble Tent, 12 x 11.1 ft Waterproof & UV-Resistant, Clear Camping Tent Shelter, Outdoor Garden Dome Igloo Tents with Windows, 540° Panoramic View, for 10-12 Persons Patio Backyard

Dear Customer, Thanks for your inquiry. Has a removable base.

Here is the operating temperature range for the PVC material used in this clear dome tent: Minimum Temperature: -4°F (-20°C) Below this temperature, the clear PVC panels become rigid and brittle, making folding or pop-up assembly risky. Maximum Temperature: 104°F (40°C) While the PVC holds up to warm weather, direct sunlight creates a greenhouse effect that significantly raises internal heat, so proper ventilation via the zippered windows is essential in warm weather.

No, this cannot be added.