BIC 4 Color Fashion Ball Pen, Medium Point (1.0mm), Assorted Colors , 1-Count | eBay
Amazon.com : BIC 4-Color Ballpoint Pens, Medium Point (1.0mm), 4 Colors in 1 Set of Multicolored Pens, 3-Count Pack, Pens for School Supplies (Pen barrel color may vary) : Office Products