Transparent plastic box with the capacity of 1000ml and one plastic cube with the volume of 1 cdm. The cube can be just put into the box. The plastic cube is indeformable and no burrs. The silkscreen printing is correct, clear and not askew.

Maths Teaching Kit School Lab Equipment Suppliers in India 

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