This Versatile Dapping Block Is Cube Shaped, Measuing 2" X 2" X 2". There Are 18 Half-sphere Multiple-size Depressions For Shaping (2mm, 3mm, 5mm, 6mm, 8mm, 9mm, 11mm, 12mm, 14mm, 15mm, 17mm, 19mm, 20mm, 21mm, 25mm, 28mm, 31mm, 35mm. Made Of Polished Alloy Hardened Steel. Comes With A Leatherette Case.* 21 Round Cavities * 4mm To 14,16,18,20,25,30,35 & 40mm * 2" Square * Harden Steel, Polished/Griding, Tempered 50 degree * Block Weight: 2.13 Lbs.