Avedia 4 Pcs Inkless Pencils Eternal With Pencil Case, Everlasting Pencil With 2 Pcs Replacement Nibs, Infinite Pencil, Unlimited Writing Pencil, Reusable Erasable Pencil For Student Artist Writing Drawing Pencil  (Pink, Yellow, Black, Blue)

Material Information: Pencils for long-term writing The nib is made of metal, 5.1x0.6 in , it can write smoothly, and the handwriting is easy to be wiped off with an eraser. Long eraser inside, easy to erase. Working Principle: The reason why this metal inkless pen can write without sharpening or ink is that the nib rubs on the paper to decompose the alloy metal molecules and leave them on the surface of the paper; Inkless pen can be applied on most paper, and the handwriting can be retained for a long time, regardless of temperature or weather conditions. Durable And Save Cost: Metal erasable pens can replace up to 100 traditional pencils by using compressed nibs, without the need to sharpen or replace the refills; It helps you reduce the time of sharpening or adding ink, saving money?Free your pen bag. Portable Inkless Pencil: No sharpening, No ink requirement. Providing you with convenient writing without worrying about ink interrupting. Anti-slip pen rod; Sturdy pen clip; Comfortable grip. Stylish and delicate design, weight to comfort ratio, very suit for right or left-handed children and adults.