Knee warmers features: rapid heating, efficient heating, comfortable touch, safe raw materials, and lasting heating.
The unique concave design is ergonomic and makes the knee feel more comfortable.
High-purity iron powder and high-quality activated carbon are used to generate heat efficiently for 10 hours. Vermiculite heat preservation, constant temperature 52℃, make you comfortable all day.
Find quality knee warmers from the leading knee warm patches factory in China. Contact us to custom your own brand package and improve your business.