Muy buenos refills de portaminas. Bastantes minas, bastante largas y se borran bastante bien. En algún punto si se dan michas pasadas sí quedará un rastro, pero me sorprendió la cantidad de veces que pude dibujar y borrar sobre el mismo lugar antes de que ya se quedara manchado. También son muy suaves y pintan bien. Estoy muy satisfecha. :)

En mi caso no venía ninguna mina rota,v pedí color negro y se hicieron bastante buenas. Las estoy usando con mi portaminas y muy fácil dibujar.Voy a volver a comprar más.

Llego a tiempo, el material es de buena calidad

Dessin, tendre et laisse une belle trace. Malheureusement, plus de 20% des mines bleues sont cassées en morceaux trop courts pour être utilisés. Emballage déficient pour un produit si fragile.

La mina es muy suave por lo que se pueden crear degradados 😃

Compatibles con lápiz de minas de 2mm o de grafito suave. Me sirven para no sacar punta en obra al trazar datos en el concreto

Me gusto la calidad del pigmento de las minas, son duras y son fáciles de borrar. Recomendables

El color es exactamente el que se ve en las fotos, no es de grafito, es de una especie de "cera" difícil de borrar y muy fácil de romper. Son como 1 cm más cortas que las minas de grafito.

Yeah, no....I think they made some claim about the strength of the things, but they are annoyingly soft...Nice colour, but like a slender crayon...

Acostumbrado a usar la suavidad de las minas Staedtler azules para dibujar,Siempre busque esa opción en color negro que no existe en el catálogo de la compañía alemana, sin embargo, esta opcion ofrece una grata experiencia pues es suave como la azul, que mencioné y oscura como el grafito que no es tanto de mi agrado.Vienen 30 minas contenidas en un envase transparente muy compacto y conveniente para llevarlo en la lapicera.La desventaja es que en efecto son quebradizas y no son fáciles de borrar. Igual es una buena opcion en lo que Staedtler finalmente saca una opción en negro de 2mm

My son love it

Wonderful and I ordered 2 more and will order even more, here is why:1) This lead is a wonderful deep blue, not a coloring book blue, a pretty serious looking shade of blue.2) It has the tactile scratchiness of an H level lead3) it has the smoothness of a B level, it has great paper interaction, but not too hard and not too soft, but has some nice tooth on vellum.4) It erases somewhat ok depending on how hard you pressed5) Also has a slight very mild wax texture, so it is like the best of all words, colored pencil, graphite,6) It never broke one time and in a technical mechanical sharpener gets a great point but it doesnt last a long time. Has a great price to quantity point...great value.7) Is very fluid right out of the pencil holder , so great motion for sketching, actually wonderful for sketching at 2mm flat out blunt, at first I was always going for a point but it is great for concepts without any point at all. Nice on a harder backing surface , you can get a good tight scratch or go ice skating, somehow it can do both.8) Is not a brittle as Pentel which I still like as well, but this with a point outdoes a .05 and .07 but does not hold the point as long to keep below .05.9) Great purchase and price , this is an objective review , I did not get free samples and I am not associated with the company.10) It has become my first choice goto blue lead for drawing , I do not use any black for sketches or drawings, I like the neutrality of blue, this will go dark with pressure but not extreme dark. In other words, no attempt at grayscale levels with an exact H or B match.11) If you like Mechanical, like blue, like a good not too hard , not too soft material , love the price of this, then you should try it. I would not consider this a material for very very dark shadows...but my paper choice is translucent vellum ...that way I dont need a mirror check at all for concepts, I just flip it over and start drawing on the back, so I actually work a drawing on both sides, at the same time. if I need a total redo, I dont need a light table at all, just put the two sheets on a cheap piece of styrofoam 1/4 inch poster board12) I will still use the Pentel .05 and .07 if I need a consistent area without needing a really sharp point. Extra tight details are done on the back of the drawing with UNI .05 blue. It is deeper and darker.13) I like this material with either Borden and Riley 90 Vellum and or the 11 x 17 translucent white vellum from Paperandmore, however that paper is expensive so I get 200 sheets for 99 dollars at one time. This drawing material works fine on both. I do not use any drawing shield under my hand because I like to work the blue smudge and smear into the drawing as it happens randomly and evolves. This does not overly smear but when mixed with the Uni, gives a nice foggy tone to the paper as it develops in real time as opposed to a pre toned paper.14) I am not a photorealist, so I cannot comment on the exact shading range for ultra realistic rendering, or illustration board. I dont really care , I am a line person, not a value person.15) I use this more for the equivalent in blue of the shading drawing style types in the Italian Renaissance except in blue not red chalk, nut still more linear.In conclusion this material, a good mechanical holder, mechanical type sharpener , Good vellum , Uni and Pentel .05 and .07 as sidekick leads, .... and actually the rest of the world can go ahead and blow itself up if it wants too ....., I will go live in a cave with a skylight.Sorry if I used the word "I" too much , just trying to give you an example of a very specific example of how this material is used, and for the price , it is worth trying.Nothing beats drawing!!!!

works great doesn't erase well witch is expect it