This item can effectively correct the heel valgus/varus and O/X leg and improve the friction between heel and shoes from internal / external side. It is washable and reusable, hand wash with cold water, air dry and don't put it under the sunlight. It is made from gel, and comfortable to wear for you. Features - Color: Beige White. - Material: PU leather and gel. - Size: 8.2cm / 3.2inch(One side length); 6.5cm / 2.6inch(Other side length); 5.7cm / 2.2inch(Width); 0.5cm / 0.2inch(Thickness) - Easily cut your own size, breathable, comfortable, sweat-absorbent and deodorant. - Perfect for daily work, running, walking, heel pains. - Size for women/men, correct O/X-type leg, beautify and shape leg. - Made from gel, and comfortable to wear. Tips - Keep your shoes dry. - Remove the original sole of the shoe before putting the insole. - Try to buy two pairs for alternate use. - Put the insoles in a ventilating place to keep them dry and fresh.