Feature:1. Universal Design: This soil test kit has a wide range of applications for testing different soils to accurately identify the most effective fertilizers and correctors for your soil.2. Real Time Readings: The soil test kit allows for rapid measurement of nitrogen, phosphorus and potassium (NPK) levels without the need to send soil samples for evaluation.3. Easy To Use: Soil test liquid is easy to use, simply mix the soil with water and then compare the color of results to the chart to help develop quality, healthy soil.4. Complete Kit: This soil test kit includes test reagents, test tubes, test control sheets and other tools for accurate soil fertility measurements, and is lightweight and portable.5. Widely Applicable: Using the soil test solution can help flowers, vegetables, trees, etc, grow better in healthy soil, perfect for gardening, landscaping, farming, etc.How to Use:1. Put a small amount of soil (0.04‑0.07oz) into a 10ml tube and add 10ml of pure water.2. Shake the tube for one minute with the lid tightly closed.3. Place the tube upright for about 30 minutes until stratification occurs.4. Use a pipette to suck up 2ml of the upper layer of clear liquid and put it into another tube.5. Add 1 to 2 drops of coloring solution to the tube and shake well.6. After one minute,&nb