This unique structure is ideal for both indoor and outdoors special events and may be customized to accommodate an AC or heating unit. The entrance may be velcro or zipper depending on your specific needs. A member of our design team will meet with you to design your 20 ft. Inflatable Dome Tent according to your company's vision. The custom 20ft. Inflatable Dome Tent is made of highly durable vinyl and is weather resistant to cold, heat, fire retardant, and is covered with u.v. inhibitors, which will protect the material from fading. All materials and workmanship are produced in the U.S.A.