BalanceFrom via Amazon offers Prime members the Everyday Essentials Gel Pen 40-Piece Set, model no. ED-GP, for $9.95 with free shipping. (Non-members can spend $49 to qualify for free shipping; otherwise, shipping costs $6.44.) That's $11 under the lowest total price we could find for a similar set elsewhere. They feature 0.8mm to 1mm tips and include a barrel case.