Replacement stone beads filters for filtered shower heads and other water filtration Remove the impurities in the shower water,absorbing harmful substances in the water,soften hard water,purifying shower water to make your skin and hair smoother and softer These stone beads can be used for for Filter Shower Head,Shower Filter Cartridge,Fish Tank,Potted Plants and so on Weight: Mixed colors small stone balls: 2.12 oz approximate; Big Grey stone balls: 0.85 oz approximate YOU WILL GET: 1 pack of Mixed colors (Red,Gray and White colors) stone beads,1 pack of Big Grey color stone beads.