There are 3 different releases of the GG800/P365.
P365
Available in only 1 size (0.5mm), but five colors. Released worldwide, except in the US and Brazil.
Graph Gear 800
Available in the 4 standard sizes, but only 1 color each. US only.
P365 (Brazil Release)
Available in the 4 standard sizes, with 6 colors in each size. Brazil only.
Brazil really loves their pencils. They are the very first thing in their catalogs (speaking of, I just added their 2024-2025 catalog to the Pentel Catalog directory Pentel Catalog PDFs)