Mini size for easy application. U-shaped cut for easy opening. Lasts for 10 hours.
Why are the maximum and average temperatures reversed when the heater is applied and when it is not applied? The temperature curves of the adhesive and non-adhesive types drop in different ways, so on average, the adhesive type is higher.
The adhesive type is applied to clothing, so it is set to last from morning to night, but the non-adhesive type is set to last as long as possible.
The adhesive type has an adhesive sheet that can be applied to clothing. The adhesive sheet is selected to be as well-balanced as possible between not leaving any glue on clothing when peeled off, not being too strong to damage clothing, and not peeling off under the weight of the heater during use.
The feel of the adhesive type and non-adhesive type is slightly different. The reason is due to the difference in the surface treatment of the non-woven fabric. The non-adhesive type, which is always held in the hand, uses a hard non-woven fabric to prevent fraying, while the adhesive type, which is not held in the hand, is designed to be soft rather than strong.