Great balanced tone on bass heavy sets, really toned down the dynamics of the audio hekili, but in a good way. It's much more pleasant to hear now.

I was initially sceptical about wether this would improve my listening experience with my blon bl03. But I wanted to give it a shot as the blons weren't fitting in properly. The SpinFits were a bit expensive but it's worth it as it gave me the best seal. This inturn improved the listening experience and audio sounded way better.

Excellent. It is very useful for all kinds of earphones. I am using it for audio Technica clr100, 1more dual driver, Sony MDR-EX 255 and CCZ coffee bean. Very very comfortable.

I have bought it for my new blon 03 size m it was perfect fit