These industrial marking crayons have a wide range of possible uses. They are easily detected by grade readers, and are perfect for general marking on a variety of different surfaces. They are also waterproof, and a great alternative to permanent marker pens.

Features

• Hard Crayons
• Unwrapped
• Box 20
  
  Colour: Black, Blue, Brown, Green, Grey, Lilac, Light Blue, Orange, Pink, Purple, Red, Turquoise, White, Yellow
  Size: 22x130mm