1、Long lasting effect, can clean and purify air, make you feel more comfortable. 2、Adopts sodium chlorite material, good cleaning effect, effectively remove odor. 3、Safe and mild, both children and adults can use it with ease, eco-friendly and practical. 4、Light weight and in small size, it can be hung on the neck or put in the pocket. 5、Suitable for buses, subways, shopping malls and other crowded public places. 1 x Cleaning Card1 x Lanyard Condition: 100% Brand NewItem Type: Cleaning CardMaterial: Sodium chlorite, chlorine dioxide, natural zeoliteHow to Use: Take this product out of the packaging bag and wear it on your body or belongings with the lanyard for cleaning. It can also be worn on the neck with a lanyard sold on the market.Applicable Places: Bus, subways, shopping malls and other public places with dense crowdsStorage Method: Store in a dry, cool and dark placeSize: Approx. 10 x 7.4cm / 3.9 x 2.9in