Specification Brand : Qrhky BulletPoint1 : [Mohs Scale of Hardness] The Mohs Scale of Hardness Is Divided Into 2-9 Levels. The Hardness Scale Is: Yellow 2-3, Green: 4-5, Blue: 6-4, Red: 8-9. The Specific Scale Corresponds to The Specific Test Sample. BulletPoint2 : [Material] Home Water Hardness Test Kit Is Made of Solid Stainless Steel, Strong and Durable There are 4 Hardness Pens In The Box, Each 155mm Long. BulletPoint3 : [Double-Ended Stylus] Each Metal Hardness Tester Has Stylus With Different Hardness At Both Ends, Which Can Improve Efficiency and Be Convenient and Fast When Testing Different Samples. BulletPoint4 : [High Sensitivity] The Hardness Test Kit File Has High Accuracy.It Has A Multi-Faceted Shape and Has Been Carefully Processed, Making It More Convenient and Durable To Use. BulletPoint5 : [Scope of Application] The Minerals and Metals Test Kit Comes With A Storage Box Grinding Stone Stripe Plate Magnet Can Be Placed on Aluminum Plates, Brass Plates, Glass Plates, Etc. With Different Hardness to Identify The Hardness of Minerals. Color : Black ExternallyAssignedProductIdentifier : 8049459560699 IncludedComponents : Storage Box ItemDisplayWeight : 0.3 pounds ItemName : Qrhky Mohs Hardness Test Kit for Rocks, 2-9 Rock Hardness Scratch Test Kit, Mohs Hardness Tester Pen 4-Pack, with Storage Box and Testing Aids, for Mineral, Gemstone, Glass Hardness Testing ItemPackageDimensions_Height : 2.5 inches ItemPackageDimensions_Length : 9.1 inches ItemPackageDimensions_Width : 7.1 inches ItemPackageQuantity : 1 ItemTypeKeyword : hardness-testing-apparatus Manufacturer : Qrhky Material : plastic MeasurementAccuracy : +/-0.1% ModelNumber : KWCS-4 NumberOfItems : 4 NumberOfLithiumMetalCells : 1 PartNumber : KWCS-4 ProductDescription : Hard Water Test Kit Can Be Used for Gemstone, Tile, Floor, Glass, Mobile Phone Screen, Mineral, Concrete Testing, Etc. Specifications: Name: Metal Tester Kit Hardness Standard: 2&3, 4&5, 6&7, 8&9 Product Material: 304 Stainless Steel (Main Body) Weight: 500g Testing Basis: Rock Identification Kit Is Based on The Hardness of 10 Different Minerals, Using Materials of Different Hardness to Simulate and Replace Minerals, Making A Scratch Pen Similar to Minerals, Which Is Used to Detect The Mohs Hardness of Various Material Surfaces.The Hardness Pen Consists of Four Nibs, With Eight Different Hardnesses Engraved on Both Ends. The Pen Body Is Scratched And Compared to Determine Its Relative Hardness Value. The Hardness Pens Are [2-3][4-5][6-7][8-9] for Example: If 2 Is Not Scratched, The Hardness Is 3, and If 9 Is Scratched, The Hardness Is 10. ProductSiteLaunchDate : 2024-10-12T06:39:45.276Z Size : 8.4X5.7X2.6cm SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnspscCode : 41114611