Is quite easy to change it, just pull out the old piece and replace it. The new one has better quality than the original head phone cover. I would recommend it:)
waited quite long though. but worth it
Takes some time to stretch the new pads but they do fit. Sponge is a bit harder than the original pads though. But, still satisfied with the purchase.
Sony MDR-ZX110 310 300 BT101 V150 V250 V300 headphones sponge cover 70mm ear pads