The product is a set of 4 Pool Time Max Blue Tabs 22838PTM, each containing a 6 in 1 formula for easier pool maintenance. These 3" tablets are designed for above-ground pools and come in convenient 5lb tubs, making it easier to keep your pool clean and clear. With the trusted Pool Time brand, you can be confident in the effectiveness of these tablets in keeping your pool water crystal clear and ready for use.