The label for a heat pack toy can be found in different places depending on the design, but it is most commonly sewn on the outside.

1. Most Common: Sewn on the Outside

• This is the standard practice for most plush toys, including heat packs. The label is attached to an outer seam, often on the backside, bottom, or ear of the toy.

• Reason: Important information needs to be easily accessible to the user before and during use. This includes safety warnings (e.g., "Do not microwave for more than X seconds"), material content, care instructions, and manufacturer details. Having it on the outside ensures the user can always see and refer to it.

2. Sometimes: Sewn on the Inside (Less Common for Heat Packs)

• Some high-end or traditional plush toys might have a brand or size tag sewn into an inner seam. However, for a heat pack toy, the crucial safety/instruction label is almost always on the outside.

• If there is an inner tag, it might only contain material information (e.g., "100% cotton shell") but not the primary instructions.

In summary:
You should look for the label on the outside of the heat pack toy. It is typically a small fabric tag sewn onto an external seam, providing essential safety and usage instructions.