As a result of a poor colour description in the Keysight parts list, I expect to have some brand new parts for a 3458A available shortly. Keysight are sending the correct parts (5041-8819 and 5041-8820, which are a dark grey with a hint of a green tinge). They were described as green which they really aren't, which is why I ordered the wrong ones. They are: 5041-9186 Cap - Strap Handle Retainer - Front. Colour Light Grey Qty 2 5041-9187 Cap - Strap Handle Retainer - Rear. Colour Light Grey Qty 1 These match with the later Agilent/Keysight pale grey colour scheme. Based on the part number, I suspect they may fit other instruments as well Yours for £5 each plus cost of postage from the UK. Cheers Dave