shamjina 100x Refill Disappearing Ink Refill Painting Industry Writing Drawing Refill

shamjina 100x Refill Disappearing Ink Refill Painting Industry Writing Drawing Refill

• 【Purpose】: This pens is ideal for marking and line drawing in the shoe-making and garment industries. When you need to see the markings for cutting, simply shine a Light on.
• 【Testing】: Due to different chemical compositions and physical properties on various materials, please make sure to conduction small test before starting production.
• 【Package List】: Each package contains 100 pieces of Pen Cores.
• 【Advantage】: The pen writes invisibly, eliminating the need for post-cleaning work to remove markings.
• 【Usage Warning】: This product is intended solely for industrial production marking purposes. It should not be used for writing contracts, signing important documents or other official paperwork.