1Universal 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. 2Real 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. 3Easy 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. 4Complete 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. 5Widely Applicable: Using the soil test solution can help flowers, vegetables, trees, etc, grow better in healthy soil, perfect for gardening, landscaping, farming, etc.