Plastic, set of 100 rods, 5 colors, 20 rods in each color. The cross-section of the plastic rod is hexagon with dia. 3.5mm. Rods high 100mm. No burrs. All packed in a plastic bag.

Maths Teaching Kit School Lab Equipment Suppliers in India 

Ltekonline are the manufacturers of Counting Rods Maths Teaching Kit used to demonstrate engineering principles in Engineering Colleges, Engineering Schools and Maths Teaching Kits for Engineering Teaching Lab in Universities