Top tipTake the one off under the hinge (most have two ) and use that, or if above eye level, use the one off the top hinge.Mr B
http://www.ebay.co.uk/itm/Pack-of-3-Round-Replacement-Upvc-Door-Hinge-Caps-White-or-Brown-/190462926446?var=&hash=item2c58799e6e:m:mOxYlf4jtnvR-yIvy-y3B_w
Just Google it they sell them in bnq pack of four £1.85
I've knocked loads of them off over the years...no ones ever complained😀