It is a cushion and not a cover, so installation should be fairly simple
1 2 Menthol Cigarettes and Public Health: Review of the Scientific Evidence and Recommendations (PDF)
And when, a few minutes later, Salas finally completed his identification of the ballot boxes, the master said, The court is going to open the ballot boxes. Jumping to their feet again and rushing to the bench, shouting at Smith, Johnsons lawyers stalled almost frantically to keep the boxes closed, Tarleton repeating his arguments that opening them would violate state laws and statutes, Looney saying, If the practice permits, and I think it does

A 2010 CDC study found higher levels of tobacco smoke by-products in people who lived with smokers, especially children, and that, Secondhand exposure to tobacco smoke causes heart disease and lung cancer in nonsmoking adults and sudden infant death syndrome, acute respiratory infections, middle ear disease, exacerbated asthma, respiratory symptoms, and decreased lung function in children. A study in the Journal of Epidemiology and Public Health found that, When compared with never exposed children, children exposed to continuous secondhand smoke scored higher on self-reported aggressive behaviour and teacher-rated antisocial behaviour in fourth gradesimilarly, children exposed to transient levels of secondhand smoke scored higher on aggressive and antisocial behaviour. As you can see from these studies, tobacco smoke is made up of gaseous toxic compounds like acetaldehyde, hydrogen cyanide, and many others
Nicotine alone is toxic and can be lethal
See 3.2 through 3.8 for specific types of items