Highlights This product adopts the dual-filtration principle, could effectively reduce 70% of the harmful substances of the tobacco. Substantially retain TAR, NICOTINE, CO, & other harmful substance in cigarette. Ease symptoms caused by smoking, such as cough, over-phlegm, throat ache etc Specification Dimension (cm): 5.3 1 1 Shipping Weight (Kg): 0.0168 Package Contents 7