What's the name of the refrigerator booth sticker?

The refrigerator booth sticker is called:

Post-it notes or time stickers. Post-it notes are a kind of post-it notes. The back of the sticker is sticky and generally smaller.

Refrigerator is a kind of refrigeration equipment to keep a constant low temperature, and it is also a civilian product to keep food or other items at a constant low temperature. There are compressors, ice makers, cabinets or boxes for refrigeration, and there are storage boxes with refrigeration devices in the boxes. The volume of domestic refrigerators is usually 20 ~ 500 liters.

19 10 the world's first compressed refrigeration household refrigerator came out in the United States. 1925 Lido Company of Sweden has developed a household absorption refrigerator.