BRING BAMBOO'S PURIFYING AIR HOME FROM 28N - Activated charcoal odor absorber sourced from bamboo basking in 8 hours of daily sunlight, fertile soil and abundant water sources, forms the foundation of a richer porous structure and organic composition than others. ODOR CONTROL POWER FROM 25,000,000/G ADSORPTION PORES - Activated bamboo charcoal engineered through precise 1500 carbonization, boasts 2-50nmm Micrometres and nano-sized pores, providing a specific area of 1000 square meters per THREE-LAYER DESIGN MEETS SUPERIOR ODOR ELIMINATION - Bamboo charcoal bags odor eliminator for home with breathable fabric prevents charcoal dispersion and accelerates air , filtering odors without compromising airflow, ensuring continuous and potent odor elimination for smoke odor absorber. 2 YEARS CONTINUOUS FRESH AIR - in 17,520 hours of natural deodorizer odor eliminator A simple monthly sunbath recharges the bags, making them a cost-effective choice for your pocket and a compelling one for the planet. Colour:Gray Material:activated carbon Package Contents: 4 * Activated Charcoal 4 * hook Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.