Features:100% brand new and high qualityThere are 50 test strips in each bottle. And the bottle is compact and easy to carry.The test strip is used for rapid analysis (PH value, total alkalinity, hardness, nitrate, nitrite, bromine, total chlorine).Good water quality is essential for the fish and plants in your aquarium.Regular testing of water quality values helps ensure fish live healthy happy and long lives.Our bottle is small in size and light in weight. Whether you are going for a swim or a hot spring, you can put it in a bag and carry it easily. You can use it to detect the sanitation of swimming pools or hot springs. Package Includes:1 Bottle of PH Test Strips(50pcs / bottle) Specifications:Material: Fiber PaperBottle Size: 108x45mm/ 4.25x1.77 inTest Strip Size: 90x5mm/ 3.54x 0.2 in note:Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item.