This set comes with a set of car coasters and matching double sided air freshener. Freshener comes with no scent so you can add any scent you’d like or I can provide some and you can add as little or as much as you’d like for an extra $.75 

car coasters are made of neoprene and should fit most car cupholders. They can be hand washed and laid flat to dry

air fresheners are made of a thick felt and are double sided.