Usage Tips:Features:1.Little Stuff make your swimming pool cleaner2.Works with All Pool Types: In-ground, above-ground, saltwater, and chlorine pools. Also safe for all finishes, including, plaster, pebble, quartz, tile, and vinyl liners.3.Made of high quality material, durable and long lasting.4. When used in smaller pools significantly reduces chlorine usage faster.5.No Harmful Chemicals, Ends Bleached Clothes & Hair: Invest in your familys health & use a chlorine-free shock Your kids will certainly thank you for the switch because they wont he to worry about dry & red eyes or hing their clothes bleached Notice:Please allow 1-3cm deviation due to manual measurementActual color may be slightly different from the image due to different monitor and light effectSize:26*25*21cm/20x20x20cmMaterial:ABSincludes:1 SET x Solar Pool Ionizer