MIM MIM Medical Instrument Product Description 1. Product Name: clear brackets 2. Material: Manufactured by ceramic Product Nameclear bracketsBrand Name:Hunan Injection or OEM Model Numberceramic BracketPowerManual MaterialSapphire CeramicShelf Life:5 years Quality CertificationCE/ISOInstrument classifiedClass II Transport PackageCarton, Plastic Bag, Export PackageApplicationorthodontics, hospital, clinic, dentist HookNo hook, hooks on 3, hooks on 345ServiceOEM Accept Place of OriginChangsha, ChinaCompany TypeManufacturer Our Dental clear brackets are made by MIM technology. With one piece construction high quality brackets avoid the leakage and secondary welding. The different type of clear brackets all have two different size : 0.022" and 0.018" . Based on the good medical grade ceramic material, It never be black, make you have a good smile.MIM MIM Medical Instrument website:http://www.chinamim.com/mim-medical-instrument/