The R ruler at the bottom of the first image is the actual item shown in image 2. [Size] Thickness: Approximately 2mm, Approximately 95 x Approximately 79mm (4 pieces) / Approximately 97 x Approximately 84mm (1 piece) [R Sizes] 5-10-15-20-25-30-35mm (4 pieces) / 10-12-15-20-25-30mm (1 piece) [Circle Diameter Sizes] 2.5-5-10-12.5mm (4 pieces) / 10-12-15-20-25-30mm (1 piece) [Pricking Iron Spacing] 3-3.38-3.85-4mm Leathercraft R Cutting Ruler Set of 5 (with pricking iron holes) Because it's transparent, the leather underneath is easy to see, and because it's acrylic, it can be used repeatedly. Please remove the protective film before use. *Instruction manual is not included.