That is the drainage pipe, 500 grams.

Get rid of drain and sewer blockages easily with Dak Drain Pipe Beads 500 grams. The effective granular formula dissolves accumulated deposits and fats and breaks down hair and dirt that hinder water flow. It works quickly and provides effective results that last a long time, maintaining a smooth and healthy drainage system in your home. Safe to use in all pipes without causing damage. Features: concentrated granular formula dissolves fats and impurities at a super fast rate. Removes hair blockages and accumulated dirt in drains. Prevents bad odors and keeps the sewer clean. Safe to use in all types of pipes without damage. 500-gram practical pack provides multiple uses. Dak Drain Pipe Beads are the perfect solution for cleaning sewers effectively and easily.