This is a beautiful silver-gray hair with a natural shine and a very smooth texture. It has a delicate luster. It has a visual effect like real hair, and is perfect for photography. Material: High-quality heat-resistant fiber (up to 180°C). You can also use heat devices such as hair dryers, hair irons, and curling irons. Size: 1/3 doll head circumference approx. 8-9 inches (21-24 cm) 1/4 doll head circumference approx. 7-8 inches (17.5-18.5 cm) 1/6 doll head circumference approx. 6-7 inches (15-16.5 cm) Application: (Compatible with dolls such as SD, BJD, DD, MSD, and Obitsu, but please check the head circumference of your doll.) The back of the wig is made of rubber, so it can be stretched slightly. The photo shows the shape, so you can style the actual product to your liking.