Many manufacturers send distributors & shopkeepers a collection of samples of their products to display in their showcases for customers. We figured these can prove to be a great teaching aid for students - a nice tangible way to introduce them to the wide variety of electronic components available to an engineer today. Here is one with samples of a variety of Screw Terminals:
LARE's Learning Center, India conducts practical hands-on courses for undergraduates in the field of embedded electronic design. Do join us for a unique learning experience and go beyond your academic courseware.