Features 1、Made of food grade material, environmental-friendly, durable to use. 2、With small size and light weight, convenient to carry. 3、Easy to clean, you can use water or paper wash it. 4、It can effectively filter the tar, nicotine and carbolic acid in smoke, reducing the damage of smoking your body. 5、Effective remission of phlegm and shortness of breath caused by smoking, significantly reducing the amount of smoke in the teeth. Specification Features: Made of food grade material, environmental-friendly, durable to use. With small size and light weight, convenient to carry. Easy to clean, you can use water or paper wash it. It can effectively filter the tar, nicotine and carbolic acid in smoke, reducing the damage of smoking your body. Effective remission of phlegm and shortness of breath caused by smoking, significantly reducing the amount of smoke in the teeth. Specification: Material: Resin & Metal Model: #SD-21 Weight: 56g/2oz Cigarette Filter Length: 8cm/3.1inch Package Includes: 1 x Filter Cigarette Holder 10 Bottles x Filterable Beads 1 x Plastic Trestle Note: 1. Please allow slight error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.