Features: Thick plush design, fashionable appearance makes them cushioned for comfort and warm. USB heated, easy using USB port, lets your work and study while keeping your toes toasty! Soft and cozy, made of super-soft material is warm and cuddly. The temperature is no more than 60 degrees, very safe. Equipped with one moxa bag, help improving get rid of damp and accelerating the circulation of blood. Detachable design, easy to detach and easy to wash, very convenient. Can be connect to computer USB interface, mobile power, mobile phone power connector and etc. 3 candy colors optional, you can choose what you want according to your demands. A perfectgift for your families and friends. Perfect fit: One size fits most. (no more than size 12)