[whole body relaxation]: the electric foot warmer adopts the latest heating technology. It can your body from poor blood circulation, arthritis, cold and cold weather in the uterus. It can also treat muscle soreness in the back, waist, abdomen, knees, legs, neck and shoulders, and bring you warmth all day. [special pocket design]: the unique pocket design on the warm foot pad can cold air from entering and keep the interior warm longer. A soft, thick flannel will keep the heat inside the pad warm. [auto off / adjustable temperature]: you can customize the foot warmer according to the weather or set it to match the target body parts. The optional timer auto off setting prevents burns and overheating and helps save energy. Our products are ETL certified (from Intertek) and meet standard requirements. [experience comfort]: you will like the of super Plush flannel fabric, which will not stimulate your skin. A 6.5-foot-long ultra long wire allows you to reach the AC power outlet when you cool down on the sofa in bed, and this machine washable fabric makes maintenance easy. [heating in a few seconds]: although other warmers take a long time to heat, this electric shoe designed by US adopts unique warp knitted fabric, which can make the heat penetrate faster. This means that you can experience hyperthermia in seconds pain or tension faster. size 38 x 28 x 12 cm / 14.96 x 11.02 x 4.73 inches include 1pc foot warmer