-Durable, ergonomic cases for your standard deck of playing cards. -Design reduces material use while maintaining strength and aesthetics. -Sliding top snaps into place to hold cards securely. -Design has been refined for quality in fit and printability with no support material. -Four versions for use with poker or bridge cards, single or double deck. -Fun project and awesome gift for your gamer of the family! -step, parasolid and STL formats available