$64.99 Retractable gel pens, black/red/blue ink, large capacity, 0.5 mm ball point, replaceable refills 
Staples Gel Stick Pens Medium Point Black Dozen (11246-CC) 501955 - Walmart.com - Walmart.com
Sharpie S-Gel Retractable Pens, Black, Medium 0.7 mm | Grand & Toy
