- Insole built-in activated carbon, iron powder, constant temperature stone.
- Long-term effect and durable, keep warm and keep healthy.
- Promote blood circulation, increase metabolism, immunity enhancement.
- Ease pain, relieve fatigue.
- Wear comfortable, does not affect work, study and life.
- Without using any energy, reliable and eco-friendly.
- Self-heating product, no external power and heat.
- Type: Woman (EU 35-39), Man (40-43)
- Woman size: Approx. 230x70mm/ 9.05×2.76”
- Man size: Approx. 250x80mm/ 9.84×3.15”
- Continuous heating time: Max. 10 hours
- Average temperature: About 40℃
- 1Pair*Foot Heater Pad