Review on 📏 Derwent Pencil Extender Set, 2 Pack - Silver and Black, Accommodates Pencils up to 8mm (2300124) by Miranda Montoya

I ordered these extenders because I use Derwent graphite and charcoal pencils (so I was sure they would fit most of my pencils). I also have a set of Prismacolor colored pencils and a set of Faber Castell Polychromos colored pencils. Black (7 mm) extension, suitable for Derwent graphite pencils and Prismacolor pencils. Silver (8 mm) extension, suitable for Derwent charcoal pencils and Polychromos pencils. The only pencils that didn't work for her were the Conte Crayon pencils. I've spent quite a bit of time finding extensions that work with Polychromos pens, so I hope someone finds this information helpful. I also like that these extensions screw in and out. I'm not a big fan of the slip ring mechanism on other extensions. They are also very solidly built. They are definitely worth their money. Update: They also fit Tombow Mono and Mitsubishi Hi-uni pencils. They are suitable for 7mm but work better for 8mm.