Feature:1. Using highhardness steel nib, improves the marking effect, durable to use.2. Suitable for being used on light color leather, easy to operate.3. Disappear when the temperature reaches about 50, and will reappear at 8.4. Wide application, suitable for temporary marking on shoes, clothing and leather.5. Comes with 100pcs pen refills, which can completely meet your needs.Specification:Condition: Brand NewItem Type: High Temperature Disappearing Pen Refill Shell Material: PlasticPen Point Material: SteelColor: As picture shownTotal Length: Approx. 13cm/5.1inQuantity: 100pcsUses: Used for temporary marking on shoes, clothing and leather.Use Instructions:1. This product will disappear when the temperature reaches about 50.2. Used for temporary marking of shoes, clothing and leather3. The use of high-hardness steel head improves the marking effect and is durable4. Used on light color leather.5. Will reappear at -8..Package List:100 x High Temperature Disappearing Pen Refill Note:1. Since the chemical composition and physical properties of different materials are different, please make a small test before putting it into production. If you find that the effect is not good, please stop using it.2. After use, please cover the pen cap in time and store in a cool place, avoid direct sunlight, so that the effect is still good next time.3. This product is only used for industrial production marks, please do not use it for writing, signing and other important documents.