These are mouth openers, which are made of high-grade materials, durable and hygienic. Mouth bite block can easily avoid patients fatigue by using our mouth prop, which will make your patients enjoy a relaxing treatment without having to open their mouths all the time. Features -Color: Transparent-Material: PC-Size: 16.70X5.50X2.40cm/6.56X2.16X0.94in-Manufactured with premium PC material, durable and practical enough to use.-It can be used as teeth whitening mouth opener, open your mouth without pain.-Keeps the mouth open and hands available for oral inspection and treatment.-Retractor that help give you an unobstructed view of the oral cavity. Suitable for long-term use in dental clinics.-Dental lip cheek retractor provides an unobstructed view of the oral cavity. Can be used in many oral treatment procedures.Packing list: 5 x Dental Mouth Openers