will this shift knob work?

This could be considered kind of ricey, but I am really digging the following pic below...

http://www.redlinegoods.com/images/SubaruWRX-12.jpg

i ordered a new shiftboot very similar to the one above and wanted to match the boot with this knob...
http://www.optionracing.com/images/eBayPhotoNE/Accessories/SK-300BC.jpg


Will it work?????????? off this ebay site for pretty cheap too... http://cgi.ebay.com/ebaymotors/REAL-CARBON-FIBER-MANUAL-SHIFT-KNOB-CIVIC-PRELUDE-CRX_W0QQcmdZViewItemQQ_trksidZp1742Q2em153Q2el1262 QQcategoryZ33703QQihZ022QQitemZ350118975299#ebayph otohosting

I can't really tell how it will be held on.........is it threaded or are those some set screws?