Cello Writing Instruments & Containers Pvt Ltd manufactures Designer Ball Pen with Unbreakable Cap. Cello Writing Instruments & Containers Pvt Ltd offers various types of gel ink pens. Designer Ball Pen with Unbreakable Cap is available under the brand name- Faster, is used by school kid, college student, young professional, senior executive etc. This Designer Ball Pen is available in red, blue and black colors. Transparent barrel and cap with clip is provided with transparent barrel and cap with clip.