We are one of the leader companies specializing in the Scrapbooking die cutter . The dies with high quality steel designed for cutttingcardstocks,fabrics ,leathers, foams, rubbers ,thin plastics, thin aluminum . Also , we can make according to your design . any question please email me. While order, please specify which thickness die you like, 23.8mm/15.8mm thick? Wooden block measured : 5''X5'' (28cmX20cm) Thickness: 15.8mm