Description This is tool kit specially designed for testing swimming pool water quality and is used to maintain proper chlorine, bromine and PH chemical levels in swimming pools and spas. Practical and useful, a great helper for you. Features - Color: As shown.- Material: Paper.- Size: 500.00X1.50X0.10cm or 196.50X0.59X0.04 inch.- It is made of high-quality material for durable and safe to use.- The test paper has high precision with simple operation. Very useful.- It is compact and convenient to storage and carry around with you.- Quickly test the PH, residual chlorine, bromine, total chlorine, total alkalinity and total hardness in water.- The test paper is widely used for swimming pools, spas and other industries.Packing list: 1 x roll of PH test strip Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store