Headphones holder. It is big enough. Ideal for Shure 1540 headphones. For some others should be maybe smaller, I do not know. Just try. The big advantage for Shure 1540 is that the headphones does not lie on the soft leather part so it is not degradated the leather. Still like a new :) You can see the headphones lies on the H and S letters by the plastic parts.

Prusa i3 mk2

Doesn't Matter

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