The Luster Leaf Rapitest Soil Test Kit # 1602 is a comprehensive soil testing kit designed for garden enthusiasts and professionals alike. This multicolor kit includes tests for pH, nitrogen, phosphorus, and potash, providing accurate measurements to help you optimize your soil health. With 20 test directions inside, this plastic kit offers a thorough analysis of your soil to ensure your plants are getting the nutrients they need to thrive. Perfect for those looking to improve their home garden, this soil test kit is a must-have tool for any backyard gardener.