DUNBONG 4 in 1 Multicolor Ball pen, Metal Cased Multifunction 0.5mm Mechanical Pencil, Red/Blue/Black Inks, 1-Count (Silver)

I got these to use with the Lifeliness essential oil pen, since it only comes with black ink and I’m definitely a blue ink kind of person. Their refills are such a weird size, but this was the closest match I could find—and it does fit.The only small issue is that the tip doesn’t fully retract. It’s not sticking out, but if your pen’s hanging at the bottom of a bag or pouch, it might leave a little mark. That’s not really the ink’s fault though—just a heads-up if you’re using it with the same pen.

I love these pens. I have 5 of them

I like it a lot. It looks nice. Only complaint is that it when it’s “closed” not in use the base where the eraser is is pretty long. Almost too long

Meh

This is the 3rd pen that I have bought. These are perfect gifts.

Tengo sentimientos encontrados pues alpincipio no sabia como funcionaba y pensaba que el empaque traía un boligrafo individual mi sorpresa cuando vi que era todo en 1 y más cuando do supe que para sacar las demás plumas solo bastaba con girar levemente la pluma y posicionar el color qué quería hacia arriba, cuando vi que tenía un lápiz quedé fascinado con la novedad incluso descubrí que tenía gota de borrar!! Quedé aun más a sombrado, mi decepcionado fue cuando pedí uno rojo y llego todo estropeado e inservible.Este lo use me encanto como escribía pero que creen. Solo pude usarlo 2 días pq el mecanismo se estropeó y se daño el boligrafo.Es una pena pues el boligrafo es novedoso y la calidad de escritura es increíble nunca había escrito con una pluma que fluyera tanto. Pero la decepcionado esta en su mecánicos para sacar sus plumas de diferentes colores, deben mejorarlo la idea es buena.

This works like a much chunky four-color ballpoint pen, but looks like a normal pen. It's fun to use, especially when people see you write in a different color.I gave it four stars for easy to use because of the learning curve, and there is no color selection indicator. When you are getting used to it, it is easy to have the wrong color selected. There is no way to tell which color is active until you write. A small spot of paint on the ballpoint collar would be a huge help.After playing with it for a while, users will find that a quick wrist flick of the pen between upright and about 45° will reset the internal mechanism between colors so that you get the color you expect.

Used for aviation instruction. Makes more taking easy