Lucky Stone [Sakura Pink] 3200mAh Rechargeable Double-Sided Hand Warmer / Portable Charger& Power Bank with Special Designed Coating makes the Surface as Tender as Baby's Skin and delivers Natural "Baby Skin" Hand Feel. Together with our partner who has about half-century experience in coating, we developed the revolutionary coating material, which makes the surface of our product tender just like baby's skin. Our handwarmer delivers natural and comfy handfeel; Absolute Safe. The electric material comes from factories in U.S., South Korea and Taiwan. Every single hand warmer has passed the high-voltage test and 11 rounds of quality-check processes, safety ensured; Hand Warmer with High Capacity Power Bank, best devices to warm this winter up; We offer three lucky colors(Ivory white, sakura pink, turquoise blue), delivering a premium and stylish outlook which can make your electronic devices stand out among your peers;rature mode (62Celsius) can last for up to 3 hours for each charge. The best hand warmer with most meticulous craftsmanship. Just choose one of your own and you gonna love it;