Acroball 0.3mm 0.5mm 0.7mm Single color (black)...0.3mm x 3 Multi-color (black, red, blue)...0.3mm x 3, 0.5mm x 1, 0.7mm x 1 The 0.3mm pens were purchased here. The single-color pens were only used for test writing, and the multi-color pens have not been used. (New, unused, with resin balls) The 0.5mm and 0.7mm pens were purchased at a store and have not been used. No individual sales. I will pack them to prevent damage or water damage.