Insulated ducting with 2 layer, inside layer with fabric, outside layer is plastic material made of. They have sizes of 6", 8", 10", 12" (inches). If your manufacture made this product please contact me. See picture for more details. Company Name: BVB Enterprises Street Address: CASacramento5900 Lemon Hill Ave City: Sacramento Province/State: CA Country/Region: United States Telephone: 1-916-3832369 Fax: 1-916-3832369
