The Street Dabber 90ml empty dabber can be filled with any ink or paint, we recommend our in house JAG Mop Paint or MTN Paints and Inks. 30ml Details: High-quality 10mm nib and a body that is very durable, the Street Dabber 30ml is a great addition. The nib is 1/2 inch (10mm) in diameter. 90ml Details: High-quality 18 mm wide nib and a body that is very durable, the Street Dabber 90ml is a great addition. Nib is 3/4 inch (18 mm) in diameter.