These writing kits are near 40 years old and I do not remember a more complete set by a major producer of pens and pencils for only $1.00. The difference between the big 8 and big 10 is the two fountain pen refills. You got a stick pen, fountain pen, mechanical pencil, ball point pen plus refills. These were great deals for $1.00. Most of these items were on the low end of writing items but still a nice set for school. I want to bring your attention to the mechanical pencils which were modeled after the Scripto K770 just not as good. I have pulled some of these out and they do not work real well. Wearever did however make a good one that was modeled after the famous Scripto K780. It was call the Wearever TRANS-VUE and I will show them on my next post.