This Making Waves Background stamp is part of the Waves of Happiness Collection from Catherine Pooler Designs. This background stamp is made of cling mounted rubber which will adhere to acrylic blocks (sold separately). This stamp can be used with your favorite inks, pastes, paints, and other crafting mediums (all sold separately). This is a perfect stamp to use as an entire background for standard sized cards or to use a part of it for slimline cards. This stamp measures 4.37" x 5.56". When paired with all the other products in this collection (sold separately) you will have endless options for cuteness in all your cards, scrapbook pages, and other projects made with this collection. This stamp is made in the USA.