Package contents: there are 4 pieces in total. duvet cover 200x220 cm elastic bed sheet 160x200 + 30 beige color (30 cm edge height.) the rubber used in our bed sheet is guaranteed not to burst or break. . it can be used as both sides. product quality: it has 57 wire weaving density. it is made of akfil fabric. akfil fabrics absorb moisture and do not sweat. thanks to its air permeability, akfil fabrics breathe and provide a quality sleep. this product is produced by b2b collection company as 100% domestic production. Improved version for clearer understanding and better search visibility. Suitable for users seeking detailed and reliable product information.