It is filled with bead fiber inside. It is made of cotton wool fabrics. It is used for dough leavening, yoghurt fermentation and rice brewing. You can preserve meals that cool quickly, such as rice. Machine washable at 30 degrees, no fading, no sticking, no clumping in the adhesive filling. It has a capacity of up to 7 liters of pots or 7 jars with a diameter of 80 cm. This product is produced in our own facility.