3M 2149W-6 Indoor Oversized Window Insulator Kit, For Use With 6 ft 8 in x 19 ft 5 in XL Indoor Window, Clear

3M Window Insulator Kits keep cold drafts out and warm air in through heat shrink window film and Scotch window film mounting tape. 3M window kits have the clearest film and stay up all season long with Scotch tape technology.

• Saves energy and reduces heating costs
• Reduces condensation and prevents frost buildup
• Quick and easy installation
• Scotch double sided tape holds firmly between films and surfaces