Staedtler Lumocolor Omnichrom Non-Permanent Pencil - Black for Whiteboards & Glass

Very expensiveI am a lithographer and use these to draw on my aluminum plates. They work beautifully for this purpose.Product arrived quickly and met expectations.These are dark blue watercolor pencils, not suitable for underdrawings that are meant to be inked over, and definitely shows up on scans and is too dark to edit out digitally.I didn't shop around much for these but it seemed kinda pricey for a box of pencils. I just didn't know where else to find them so I just got them here. Really the only thing from amazon I kinda felt buyers remorse over so far. Maybe they're just expensive normally but with the shipping costs here I felt I may have spent too much on them. At least there's enough in the box that I won't be buying anymore for years to come. So far they look like the pencil I needed for pin striping.I'm a full time contractor always looking for things that work. These work really well on tile. I used them on slate, which was a bit hard to remove the marks after grouting, but at least it worked better than all the other alternatives.These are so much longer lasting than the stabilo pencils we had used on marking plastics and vinyl. Point stays longer. They cost more than the stabilos but the difference is well worth it.works great for laying out designs on metal surfaces for painting. works well, nice uality and have not been disappointed yet. only downdall is the prices is a bit high, otherwise great productgreat quality grease pencilsexcellentcame very quickly, great product.Estan bien y cumplen con lo que dicen, pero deberian ser algo más robustos , son como un lápiz normal... teniendo en cuenta que suele utilizarse en temas de construcción, requerirían ser bastante más resistentes.Sono piastrellista. Ho comprato queste matite per segnare su piastrelle lucide. Devo dire che sono eccellenti per questo scopo. Il segno si vede benissimo sia su piastrelle chiare che quelle scure. Ed è facile da rimuovere dopo, perché non è permanente. Prodotto ottimo, servizio Amazon, come sempre, impeccabile.