Dental Matrix Bands with NITI Metal Matrices Clamp Ring Sectional Contoured Matrix System for Clamping and Restorations Tool Kit Description 1. The ring body is made of super elastic nickel titanium alloy, with moderate strength, softness, and deformability, which can well meet the stability and adaptability requirements of the clamping ring for primary and mixed dentition. 2. The bottom corner of the head can extend into the concave area of the neck of the primary teeth, ensuring stable and non-slipping,improving the safety of use 3. The contact area of the head is made of elastic silicone, which has good adaptability to the shape of the tooth and good adhesion,an quickly and convenient restore the shape of primary teeth. 4. It has good separation force and can easily achieve close contact between adjacent surfaces. 5.Type:Short/Tall/Wide Prep 6.135C autoclavable Packaging includes: 1pcs Dental Matrix Ring Matrix Ring Specification: and high quality For Titanium Alloy Matrix Ring Material:Titanium Alloy Durable,no deformation. Made of Nickel - Titanium shape memory alloy , with stable clamping force and outstanding strength. With the function of separating teeth and good retention , establishing tight contact . 135C autoclavable Package Included: 1PCS Matrix Ring M4 Matrix Bands Specification: Product Name:Dental Matrix Bands Material: Metal Matrices Model: 3.5MM for Deciduous or low-crown teeth 4.5MM for Premolar 5.5MM for Molar 6.5MM for Molar with extensions Features: and high quality 1.Designed with hole protrusions, convenient to clamp, place and take out the formed piece 2.Form the adduction of the adjacent edge ridge 3.Conforms to the subgingival extension of the Tooth neck 4.Larger curvature can wrap and fit the tooth more stably 5.Restore tooth shape and Anatomical shape 6.Autoclavable Note: --This product is used by dentists for oral examination and treatment. --If you find that the surface of the formed sheet is not clean during use, please stop using it. --Pay attention to the edges when using to prevent damage to the mucous membrane and gums --Autoclave before use --Due to manual measurement and different measurement methods, please allow a deviation of 1-3mm. Thank you! Package Included: 50pcs