Specifications
-Grinding friction Erasable ink 0.4 0.5mm for ball pen-prompt delivery
-lifetime warranty
Grinding friction Erasable ink 0.4 0.5mm for ball pen
Longth:18cm
Diameter:6.5mm
Application:abrasion testing
Unit type:one box (12 pcs)
Weight: 0.2kg
Package includes: One box(12PCS)