Seems to be aluminum or brass, slips over the original knob & tightens with a set screw. I used it for a while
and found that it can scratch the top cover in use. I used a piece of tape to protect the cover.
$12.00 INCLUDES shipping to US.
paypal
and found that it can scratch the top cover in use. I used a piece of tape to protect the cover.
$12.00 INCLUDES shipping to US.
paypal