Staonal Marking Crayons, Black, 8/Box

Durable marking crayon that is ideal for industrial use. Permanent and waterproof, these crayons work well on cardboard, paper, wood, aluminum and Plexiglas. Color(s): Black; Crayon Size: 5 x 9/16; Size Group: Jumbo; Temp. Range: Soften at 105 F; Melt at 128 F.

Price: £ 2.38 from Zuma Office Supply US