Both 14mm and 28mm Baader Hyperion Fine Tuning Rings.
These are the specialised rings which provide changes in the eyepiece FL in any of the Hyperion eyepieces. They are a marvellous innovation by Baader as with a set of these FTR's you can achieve 3 different additional FL out of any one eyepiece - all of which is accomplished without the use of any barlow lens.
I believe they are $28 and $38 respectively brand new + postage
Asking $45 for the pair including standard postage anywhere in Australia
