Ball point pen, 1mm ball, red, tropical ink, writing distance minimum 2,000 metres, approximate quantity of ink 0.30-0.37g.
Instructions for use:
General purpose ball point pen.

Maths School Lab Equipment Suppliers in India 

Ltekonline are the manufacturers of Red Pen Ball Point Stationery Lab used to demonstrate engineering principles in Engineering Colleges, Engineering Schools and School Maths Lab Equipment for Engineering Teaching Lab in Universities