Graphene Hand Warmer

Graphene Hand Warmer – A hand warmer that can keep warm while playing. The graphene hand warmer has long-lasting heat preservation. The product produces one-key multi-purpose products. The temperature can be adjusted in three levels, which is suitable for different venues. The super-long heat preservation time can reach 5-6 hours, and it can keep warm in one minute. 85% pure fluff material, feels comfortable and textured to the touch. The built-in power bank is light and portable, making it easy to use when traveling. Water and electricity separation design, can be washed directly after taking out the battery. After draining the water, the product can be folded and stored for storage.