Ty-D Bol, 1.76 OZ, Blue Bleach Tablet, Contains Half Bleach Half Blue Spruce, Automatic Toilet Bowl Cleaner & Deodorizer, Place In Tank For Continuous Cleaning, Blue Detergent & Oxygen Bleach, Water Soluble Protective Wrap, Bowl Water Not Harmful To Children Or Pets, Safe For Plumbing & Septic Systems.