Sufficient quantity: equipped with 2 welder pencils and 48 pen cores, 4 boxes in total, 12 for each box, sufficient quantity to meet your daily use needs Luminous metal mark: A 2mm round filler can place a luminous mark, which is not easy to erase compared with a soapstone pen. The reflective mark can provide visible marks for welders and pipe fitters on metal and oily surfaces Easy to use: Each welder pencil has a built-in sharpener, which is convenient to quickly sharpen the pencil core. There is a clip on the top, which can be fixed on the clothes, bringing you a lot of convenience Applicable to all kinds of surfaces: almost any material or texture can be marked with this universal carpenter pencil, such as oily, rough, smooth, wet, dry, freeze or rusty , applicable to buildings, cars, bowls, metals, plastics, glass, wood and paper Erasable and inconspicuous: these refills are water soluble. When you mark wrong or make the original position more beautiful and traceless, you can wipe them with a wet cloth; Painting on dark surfaces is no longer a problem Material: Metal colour: As shown Package Contents: 2 x welder pencils 48 x pen cores( 4 boxes in total, 12 for each box) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.