Features: brand new and high quality Made of plastic shelland high quality batteries, very durable, compact. It has an absolutely excellent tactile feel. For indoor and outdoor use, easy to carry. The best gift in the cold winter. For family and friends, Christmas, New Years or winter, especially for scratch arthritis-patients who need hyperthermia. Optimized circuitry extends the life of the pocket hand warmer and offer protections against over discharge, overcharging, overheating and short circuiting. Can heat up quickly in seconds and immediately give off heat for you, a great winter companion that always-keeps your hands warm. Specifications: Material:ABS+Metal Power supply: USB Voltage: 5V/1A Power: 5W Color:Green/Yellow/Pink/White Size:Approx.81x53x110mm/3.18x2x4.33 inches Package Includes: 1x Hand Warmer note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.