BIC Grip 4 Color Ball Pens with 3 Color + Pencil Set, 10-count

Three color Ballpoint Pen Bullet Head Multi color Pen - Temu

Pilot 4+1 Wood - Tokyo Pen Shop

Pilot Frixion Pen 4 in 1 Erasable Gel Pen 4 Colors 0.5 mm LKFB-80EF 0.5 mm Japan - AliExpress

4-color pen video

Xpress Stylus Tri Color, Customize Promotional Pens

BIC 4 Color Ballpoint Pen, Medium Point (1.0mm), 4 Colors in 1 Set of Multicolor Pens, 3-Count Pack of Refillable Pens for Journaling and Organizing (Pen barrel color may vary)

4-COLOR PEN

BIC 4-Color Retractable Ball Pen, Assorted Colors, 1-Pack

Bic 4-Color Retractable Ballpoint Pens, 6 pk. - Assorted Colors

Soledad Tri-Color Pen with stylus