Features： 1、Clear Image: Dental photography contraster can obscure the inside of the oral cavity, making the image clearer to the patient. 2、High Temperature Cleaning: Dental photography background board can withstand high temperature cleaning at 134℃, which is safe and hygienic. 3、Prevent Hurt: Intraoral photographic background board give contrast to tooth, which will not hurting the corners of the patient's mouth. 4、Usage: Intraoral photographic contraster used for dental photography, for dental hospitals and clinics, which is a practical dental accessory. 5、 Alloy: Dental contraster made of high quality alloy material, firm and sturdy, wear resistant and stable, which is durable for use and will not deformation. Specification： Item Type: S?C1 Dental Photography Contraster Material: Metal Characteristics: Alloy material, high temperature cleaning without deformation Size: Approx. 22 x 6.5cm / 8.66 x 2.56in Package List： 1 x Dental Photography Contraster