[Environment Care] The package contains two plastic bottles (A+B) and two small plastic bags (A+B). We reduce the use of plastic bottle and use small plastic bags as refill pack. [Multi-Scenario Use] Compatible with all hydroponics growing systems. Also suitable for indoor and outdoor potted plants. [Easy Formula] Mix up 5ml A + 5ml B nutrient into every 1L water. Easy formula to remember 5:5:1000. [Safe to Use] Organic and safe to use. Non-toxic and pet-friendly. Keep it away from children. [All Round Nutrient] Two bottles of nutrient contains all round microelement required by plants, especially perfect for hydroponics growing systems. MUFGA Hydroponic Nutrient Plant food supplies - Suitable for Both Hydroponics Growing System and Soil Planting, Compatible with all Indoor Herb Garden Plants Accessories