The It's No Mystery Stamp Set from the Case Closed Collection includes all the sentiments you need to tell the right story. You'll get four large mystery-themed sentiments, including 'The Evidence Is Clear', 'The Secret Is Out', 'Case Closed' and 'It's a Mystery'. Once you've stamped your large sentiment, customize your card for any occasion with the sub-sentiments. Whether you're celebrating a birthday or showing your thanks, this set of 16 clear stamps solves the mystery of what to say! Combine with DF245 Magnifying Glass Die Set to give your message some extra emphasis. Hero Arts 4" x 6" clear stamp sets offer the best quality in the market. They are made in the USA from genuine photopolymer which is non-toxic, biodegradable, and beautifully transfers ink to paper for a true impression every time. Peel the stamp from its backing and stick it to an acrylic block for easy positioning. Mix and match the designs. Cleans up easily with water or stamp cleaner.