Tell me what this is please

[NWARadio]

Is this just as simple as it looks?
http://www.icmfg.com/crystal_hc49s.html
Just low profile crystals?

[KK0G]

Uhm....... it's crystal 8)

Yes, it's a pretty common package size. Another common package you'll see alot of has the same width and spacing but taller. Not sure if that's the answer you're looking for or not.

[NWARadio]

I've never built anything that uses crystals and I've never even held a crystal in my hand, so I didn't know they came in different sizes. I've only seen the taller ones and when I came across these I wasn't sure if they were the same thing as what I've seen. Thanks for the reply.