Xeno Tri-II Retractable Click Eraser, Assorted Colors (4-Pack) REFILLABLE AND CLICK RETRACTABLE: The Tri-II pen-style click eraser easily clicks to expend the sturdy refillable eraser inside the barrel while also retracting when needed to preserve the eraser tip. COMFORTABLE, NON-SLIP GRIP: Each Tri-II eraser is designed with an ergonomic triangular, non-slip grip for a firm yet comfortable handle allowing for ease in erasing sessions. STYLE MEETS FUNCTIONALITY: The vibrant coloring lends itself to the refined and sleek aesthetic of the Tri-II eraser, while the functionality of each pen-style eraser is bolstered by the attached pocket clip that adds extra carrying convenience and utility DESIGNED IN JAPAN, MANUFACTURED IN KOREA: Xeno delivers reliability and quality in each of their products as this ballpoint pen is made with exceptional craftsmanship in Korea utilizing research and development data compiled in Japan