Features:
1. Self-heating products, no need for external power supply and heat, environmental protection
2. Disassemble and heat up quickly, heat up quickly, long-lasting heat for 6-8 hours, keep warm and healthy
3. The heating material is evenly distributed, without protrusions, and is comfortable to wear, without affecting work, study and life
4. Tightly sealed edges, not easy to leak powder
5. In addition to keeping warm, it can also effectively promote blood circulation, increase metabolism, and relieve pain and fatigue
Product specifications:
1. Material: non-woven fabric, activated carbon, iron powder, vermiculite, water-absorbent resin, salt
2. Weight of a pair: 99g (male); 77g (female)
3. Single size: 25x8.3cm (male); 23x7.7cm (female)
