The whole class can practice problem-solving with this set of 30 tangrams in six assorted colors: blue, green, yellow, red, orange and purple.
In sturdy plastic bucket.

Maths School Lab Equipment Suppliers in India 

Ltekonline are the manufacturers of 6-Color Tangrams Geometry Instruments used to demonstrate engineering principles in Engineering Colleges, Engineering Schools and School Maths Lab Equipment for Engineering Teaching Lab in Universities