50 Pcs Water Test Strips 7-in-1 Aquarium Water Quality Test Strips for Water Quality Check Aquarium Fish Tank Pool Water Description: 100% brand new and high quality Features: High quality water tester with precise color coordination and high sensitivity, use professional health drinking water test strips to test water quality standards. Soak the drinking water test paper in the water for 2 seconds, keep it in the air for about 1 min, then adjust the color of the bottle to get the reading. Easy to carry 50 pieces test strips with container, the water quality should be tested weekly, the test strips for drinking water are easy to handle, even for beginners. The test strips are suitable for drinking water, aquarium, aquarium, swimming pool and spa, industrial water, pond, hot spring water testing. Specification: Type: Water Test Strips Material: Paper Applications: Aquarium Fish Tank Pool Water Drinking Water Detection Features: Water Test Strips, Aquarium Water Quality Test, Water Quality Check, Water Detection Tool Dimension: app.10.7cm/4.21in Color: White Quantity: 1 Set Note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes: 50 Pcs x Water Test Strips