Looking for Jacobsen / Series 7 chair glides  

BTW, I asked DWR and they...
BTW, I asked DWR and they sell the glides for $1.50 each (replacement part #P12365). They don't sell the spacers though unfortunately.

Not bad
Is it the insert kind or the one that goes outside the tubing?

Not sure but I'd imagine...
Not sure but I'd imagine it's the same as whatever is on the chairs they sell. It's not on their website to order/view a picture, I just inquired through their chat applet, and I'll have to call to order

DWR gave me a bit of a hard...
DWR gave me a bit of a hard time ordering since I didn't buy the chairs from them, but they relented 🙂

Good for you.
I needed the other kind.

I just bought 8 original series 7 chairs, they are awesome with one flaw that once we started to use them regularily (had been in storage when i bought them) the rubber seat spacers started to disintegrate. After a bunch of searching, including links on this post, i found them here  http://www.modernconscience.com/store/page6.html
hope that helps others looking. next up i will figure out how to keep them from squeeking on the concrete floors.