This tape is SOLD AS IS and can not be returned. There are no guarantees on the product but it does have typical sticky duct tape adhesive on it and it is polyethylene coated cloth. Typical defects can include bad splices, wrinkles, blanks, dirty edges and other cosmetic flaws. Thicknesses can range from 7.5 mils to 13 mils. Adhesion ranges from 40 to 80 ounces per inch. Inventory is limited and is sold on a first-come, first-served basis. The shades of the colors may vary slightly between rolls.