weight loss slippers exercise your legs ,burn fat ,massage your feet. remove strain in the soles of your feet ,promote blood circulation use 3 times per day and 15 minutes each time ,you will see the significant effect after a few days .-Material: Vamp:cashmere \ Sole: EVA .-Detailed Size: about12cm(length) x 10cm(width) x 4.5cm(heigth).Package Included:1Pair of Slippers