Woodblock measures 3" x 0.75"". A Hero Arts woodblock stamp uses FSC-certified North American maple from sustainably-managed forests, all-natural hand-pressed and hand-cut deeply etched rubber, held together with a foam mount that uses specially-formulated, non-toxic, and water-based wood and rubber adhesive, and topped with a 3M-quality, UV-rated, scratch-resistant, and long-lasting label. Our wood stamps are assembled in our family-run California facility with 100% renewable power. There is no individual wood stamp on the market of the same quality or value as a Hero Arts wood stamp. Wood block measures 1"x 2.75" x 0.75".