Some of the most popular chips come in 8-pin, arranged as 2 rows of 4 pins, DIP packaging. Think about the famous 555 timer chip or dual-operational amplifiers such as the LM358. You can also find comparators (LM393) and audio amplifiers (LM386). You can put two optocouplers PC817 into the socket. Some microcontrollers such as the ATtiny85 also fit.
You are not limited to only inserting integrated circuits. If you do not want to bend the leads of a transistor you can put it into this socket. In fact, there is space for two transistors.
It is a very handy socket, and if you have larger chips we do offer similar sockets for larger pin counts.