White rot log (egg-laying wood for stag beetles or food wood for stag beetle and giant beetle larvae, solid, dry).

I actively inoculated the log with Shiitake mushroom (Lentinula edodes), so it's evenly covered with fungus.

Condition: soft and hard degrees of decomposition

Hardwood (oak or beech)

Size: diameter at least 10 cm. Length at least 19 cm (average 13x19 cm).