Roller Ink Pen Tip is available with ball diameter of 0.5 mm and 0.7 mm. The Roller Ink Pen Tip ensures consistent flow of ink for smooth and fine writing experience. Roller Ink Pen Tip is manufactured by Indian Writing Instruments, an ISO 9001 recognised company. Indian Writing Instruments also manufactures a wide range of tips and refills for different types of ball pens and gel pens. The Roller Ink Pen Tip comes with tip made from NS and SS material and ball made from CC material.