Sony WH1000XM3/XM4 USED Swivel Parts, The best Option to repair your broken Sony Headphone:
Please note that:
Hook of XM3/XM4 are Incompatible, they are all used parts.
XM3/XM4 Swivel are USED but Orighinal Parts, NOT NEW Parts
XM4 Swivel Holder are 3D PRINTING Parts, but We did improvement from structure, make it more strong!!!
They are all uesed & Original Parts