Item Type: Electric Heated Arm Sleeve Material: Laminated Fabric Specifications: US Plug 100-240V Use: Relieve muscle stiffness, elbow soreness, fatigue, muscle tension, arthritis, sprains, muscle spasms, nerve tension, relaxation before yoga, etc.1Improve Pain: Electric heated arm sleeve relieves swelling, dryness and chapped hands to reduce chronic hand pain. 2Widely Used: Heated arm sleeve provides heat treatment to relieve muscle stiffness, fatigue, muscle tension, arthritis, sprains, muscle cramps, nerve tension, and relaxation before yoga. 3Premium Fabrics: Heated arm sleeve is made of premium composite fabric, soft, breathable and comfortable, wear resistant, machine washable. 4Humanization Design: Heat arm warmer with wrapped humanized heat, take care of your hand health. Suitable for fingers, wrists, elbows, arms, etc. 5Ideal Gifts: Electric heating arm sleeve for family and friends for Mother's Day, Father's Day, Valentine's Day, birthdays, anniversaries, Thanksgiving, Christmas and holidays. 1 xElectricHeatedArmSleeve