This roller ball pen is made of metal. Having perfect balance and appropriate weight, and feels comfortable to your hand. Cap clips on and off precisely and firmly with a nice snap. Super-smooth writing experience, no leakage, no smudging. Ink dries quickly and never fades. Larger-capacity ink tube for a long life span. Each pen comes with a premium gift case. This is the perfect gift for parents, teachers, friends and classmates. Also, you can buy one to reward yourself. Measuring 5.5'' x 0.5''. Available in gold, silver colors. Add your company name or logo for maximum visibility and entice more people over to your brand. The qty over 660pcs will be shipped by Sea.