These Pentel Alloy Energel Pens are starting to look like BICs with all the new colors. I just added the Purple EnerGel pen to the collection so now there are seven. To go with the purple pen I added a purple Pentel Sharp Kerry P1035. One of the best pencils that Pentel has made. Not a exact match but close enough for my pocket. I don't know how many different colors there are but a red one would be welcome. Sitting on top of the pink post it pad are one inch aluminum tabs that can be used in your notebook. I use them in my field notes to mark sections. Add them all to your collection.