Features: Experience precise and rapid measurement with our Test Strips, covering a comprehensive ranges of values from 1 to 14, Suitable for various substances including water, soil, and beverages. These high Precisions litmus paper strips feature a clear color scale for easy interpretation, ensuring accurate acidity and alkalinity readings across a wide spectrum. designs for researcher, educators, farmers, and anyone involved in water quality monitoring or food processing, these test strips essential tool in scientific analysis. Perfect for use in laboratories, schools, agricultural setting, and home environment , these universal indicator strips provide reliable data for various testing event . With their construction and sensitive response, these test Paper indispensable for maintaining best conditions in aquariums, pools, and more, making them a Multifunction addition to any analytical toolkit. Specifications: Material: paper Thickness: about 14mm/0.6inch Diameter of test Strips tray: 53mm/2.1in Note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the differences between different monitors, the picture may not reflect the actual colorful of the item. Package includes: 1 Roll Test Strips