This a silicone ring, which is made of material, very flexible don’t need to worry that it will cause any uncomfortable or make your finger . And waterproof so that you can even wear it when or dive. Great for many sports or activities in order to avoid to scratch your valuable wedding ring. Features - Color: Dark Gray. - Size 7: 1.73cm / 0.68inch(diameter); 5.43cm / 2.14inch(circumference). - Size 8: 1.81cm / 0.71inch(diameter); 5.72cm / 2.25inch(circumference). - Size 9: 1.89cm / 0.74inch(diameter); 5.95cm / 2.34inch(circumference). - Size 10: 1.98cm / 0.78inch(diameter); 6.21cm / 2.44inch(circumference). - Size 11: 2.06cm / 0.81inch(diameter); 6.46cm / 2.54inch(circumference). - Size 12: 2.14cm / 0.84inch(diameter); 6.72cm / 2.65inch(circumference). - Size 13: 2.22cm / 0.87inch(diameter); 6.97cm / 2.74inch(circumference). - Size 14: 2.30cm / 0.91inch(diameter); 7.22cm / 2.84inch(circumference). - Material: Silicone. - Our silicone wedding ring made of safe, durable, flexible silicone. - Tyre pattern, stylish and creative, with smooth surface, which is comfortable to wear. - The flexibility of this ring is also perfect for those with large or temporary swollen fingers. - Suitable for workout, biking, swimming, manual labor or any other physical activities - It is for a cool and trendy gift, usually given for anniversary, for his birthday, Valentines and more. Package list: 1 x silicone ring