I found these in my 'bits box'.
Bought brand new for my 2006 CBF but never used because I found a low mileage complete swingarm instead.
They are part number 91071-MY1-005. They fit into the silver flattened triangular arm which connects to the bottom of the shock.
They currently cost over £25 EACH! Yours for £35 the pair including UK postage.
They are item number 13 on the schematic below.