I've tried opening a broken pair, used a heatgun and a knife. I just can't get it open.
Anyone know a way on how to open these correctly?
This should help:
I reckon it is held together by glue.
Yes, I know its glue. Thank you for the picture. It's just that even when I heat up the glue its very hard to open. I need a more reliable way to open them.
Not the proper way but rubber mallet/hammer, very gently?
I'll give that a try. Thanks.