Sharper Image Calming Heat Massaging Weighted Heating Pad. 4lb weighted clay bead filling. Massaging design provides perfect amount of pressure, combined with soothing heat & massage therapy for penetrating relief. Penetrating heat helps relax muscle aches and soothes stiff joints. Extra long 9 ft cord makes it easy to use wherever you want. Controller allows you to easily adjust temperature & massage settings to your comfort level. Built-in 2 hour auto shut off for heat; 15 minute shut off for massage. 9 relaxing combinations. 6 settings (3 heat / 3 massage).