1Intraoral Photography: Background board give contrast to tooth and eliminates those unnecessary elements, more easily get clear oral inside images. 2Safe To Use: Smooth and mellow edge, can be placed in the patient's mouth without hurting the corners of the patient's mouth, safe and reliable. 3High Temperature Cleaning: Can withstand high temperature cleaning at 134, easy to clean, bring yoou convenience. Ergonomic handle, easy to grip and use. 4Metal Material: Dental photography contraster is made of high quality metal material, safe and eco friendly, firm and wear resistant, no deformation and durable. 5Multiple Applicable Place: Light weight and in small size, easy to store and carry, can be easily put into your bag, perfect for dental hospitals and clinics.