"A perfectly thought out system." Check the web site link to see for yourself ! The cover and one extension are like new, with their packaging reflecting them being shuffled around the house during renovations. They were purchased from Lee Valley Tools, known for their focus on selling of quality and useful products. If you are unfamiliar with metric measurements, the cover and one extension extend to approximately 6’6” (78”) to over 9’, with a width of 3’3” (39”). Offered for sale as one package (main cover and extension) for $ 25. Sorry, no holds, delivery, and cash only.