Gel Ink Pen Tip has ball made from CC material and tip made from stainless steel material. The Gel Ink Pen Tip ensures consistent flow of ink for smooth and fine writing experience. Indian Writing Instruments, an ISO 9001 accredited company is manufacturing Gel Ink Pen Tip. Indian Writing Instruments supplies a wide range of tips and refills for different types of ball pens and gel pens. The Gel Ink Pen Tip comes with ball diameter of 0.5 mm and 0.55 mm.