1)O type marker tube is made from Soft durable PVC (white).
2)Resist oil, grease and other material erosion.
3)Rifing design.

FEATURES 

1) Material:O Type Marker Tube is manufactured from Soft durable PVC (white), resist oil, grease and other material erosion. 

2) Air filled with rifing design inside the tube maintain it's shape and not twist. 

3) Suitable for typing machine. 

4) Custom labeling and easy handling. 

5) Several sizes.