The back of the key chain has embedded die of Pentium 60 or 66 MHz processor.
Intel Pentium Processor
This key chain is similar to the key chain shown above, the only difference between them in material they are made of.
"Intel Inside" Pentium processor
Embedded die on the back of this key chain does not look as big as in two key chains above.
This die is from Pentium 75 or faster processor and it was manufactured using 0.6 micron technology.
"Intel Inside" Mobile Pentium Processor
Probably one of the most beautiful key chains I have in collection.
Inside of this key chain you can see Mobile Pentium CPU in TCP package (Tape Carrier Package).
The die on the back of this key chain was manufactured using 0.35 micron technology, this is
why it looks much smaller than the dies above.
"Intel Inside" Pentium MMX Processor key chain
Intel Pentium MMX pin
The pin has the same die as the Pentium MMX key chain above.
"Intel Inside" Pentium MMX Processor
This key chain has the same picture on both sides.
Intel Pentium Overdrive Processor pin
This pin has the same die as the Pentium MMX key chain and Pentium MMX pin above.
Intel Pentium Overdrive
The back of this key chain has embedded die, which is the same size and
looks almost the same as the die of Mobile Pentium processor above.