LYRA Dry L4499102 Refill Set Filled with 12 Universal Graphite Lead in 2B, 2.8 mm, for All Surfaces, Wipe Clean

Refills are suitable for many surfaces such as metal, plastic, tiles, wood, rubber and other surfaces Markings can be wiped off smooth surfaces with a damp cloth The leads are in a shatter-proof magazine and can be easily removed, more comfort and better protection against dirt and moisture The refills have a diameter of approx. 2.8 mm