I purchased this but never used it, so it's been sitting around. ◯ Ships immediately This absorbent panel prevents condensation and provides insulation. It can be used on uneven window glass. - Product Name: Condensation Absorbing Insulation Panel - Size: Approximately 3mm thick, 300mm wide, 250mm high - Quantity: 3 panels - Features: Absorbent, Insulating, for window glass Thank you for looking.