Stainless Steel Testing Solution 20ml - Grade Identifier Reagent for Metal Verification 1. [Compact Design] Small size of 2.1x6.7cm (0.83"x2.64") ensures this testing solution bottle is easy to store and carry for on-the-go checks. 2. [Clear Identification] Accurately determine the type of stainless steel grade (200, 201, 202, 301, or 304/316) based on manganese content in minutes, preventing costly material mix-ups. 3. [Simplified Procedure] A simple, straightforward process makes testing accessible for both beginners and professionals, requiring just one drop on the metal surface. 4. [Versatile Utility] Essential tool for quality control in workshops, scrap yards, manufacturing facilities, or even home use to verify kitchenware and appliances. 5. [Dependable Results] Provides consistent and reliable color changes to match the clear indicator chart on the bottle for confident material assessments. Material: Standard chemical solution Color: Transparent liquid in a white bottle Product size: Approximately 2.1x6.7cm (0.83"x2.64") --- Package list: 1 piece testing solution