The product is a box of 12 black Pentel EnerGel Deluxe RTX 0.7mm rollerball gel ink pens. These pens are designed with high-quality ink for smooth and consistent writing. The Pentel brand is known for its reliable and durable office supplies, and the EnerGel Deluxe RTX model offers a comfortable grip and precise control. Ideal for businesses, students, and professionals, these rollerball pens provide a great writing experience with each use.