Get your next campaign "squared" away with this useful advertiser! Made of rubber, each coaster measures 4" square x 1/8" thick & can feature a four-color process imprinted design of your choosing. Protect surfaces from water marks & condensation while showing off your logo. Idea for a restaurant, bar, nightclub, grand opening & more. Make the most out of any promotional opportunity by advertising with this great drink coaster! Complies with Prop 65. 4" W x 4" H