This ice pack is designed to enhance cooling efficiency for various devices, including air conditioners and fans. Features -Color:Blue -Material:PE -Size:16.70X3.70X3.70cm/6.56X1.45X1.45in -Note : Water filling is required. -Cooling efficiency: ensures rapid cooling to keep items fresh, ideal for outdoor activities and picnics -Cold retention: provides a consistent low temperature environment, suitable for long distance cold chain transport to maintain food or medicine quality -Versatile functionality: can be used as an ice crystal box for air conditioner fans, improving indoor air quality and creating a comfortable living environment -Compact and portable design: easy to carry and store, making it a choice for travel, camping, and daily home use -Reusable: designed for multiple uses, aligning with sustainable development principles and reducing resource waste Package list: 36 packs