Package Contents: You will receive a roll of window sealing tape that is 5 cm wide and 10 m long. The back is coated with synthetic rubber adhesive for strong adhesion and good sealing. It adheres firmly to windows to protect your home from the cold and meet your daily needs for use and replacement. Safety Material: Our self-adhesive window seal is made of acrylic with high-quality environmentally friendly materials and strong backing adhesive for a long-lasting seal. Adheres firmly, leaves no residue, causes no damage to surfaces, leaves no residue upon removal, and does not require paint removal from windows to make your home more comfortable and energy-efficient. Easy to Use: Easy to install without tools. Clean the surface before use, then measure the length of the gap between doors and windows, cut the appropriate size of weather-resistant tape, cut it with scissors, and attach it to the area where sealing is needed. Just press gently to tighten it. Energy Saving: Weather-resistant sealing tape can block air circulation, keeping winters warm and comfortable and summers cool and comfortable, thereby lowering energy costs. Good sealing ability can prevent airflow, dust, rain, and smoke from entering through window gaps; it is waterproof, moisture-proof, and cool, providing you with a healthy and comfortable living environment. Wide Range of Applications: Our window insulation seal has excellent sealing properties and can be applied to various sealing and maintenance tasks in your daily life, including wood, plastic, glass, aluminum, etc. It is widely used in door rebates, door frames, window gaps, and all types of gaps where air leaks are possible for locking and durable sealing.