specification: Item Type: Dental Matrices Set _x000D_Material: Steel _x000D_Usage: Dental orthodontic materials Features: 1As an artificial false wall to replace the lost side wall of your teeth, special designed for dental use. 2Establish the contact relationship between adjacent teeth, wonderful and practical dentist accessory. 3Professional dental wedges that used with dental matrices, included plastic box has multiple compartments to keep all parts organized. 4Made of quality steel material, effectively resist oxidation, prevent rust and has long service life. 5Including dental sectional contoured matrices, rings and wedges of the package, meeting your different demands. PackageList: 100 x Dental Matrices 20 x Wedges 2 xRing