This is the Noch Profi-Rocks Scree Medium 80g [09230]

Steep mountains and rock walls are amongst the most impressive motives that can be re-created on a model landscape. Now and again, smaller or larger rocks and boulders break off of cliffs and crags and then accumulate in whole rubble fields, just under the steep mountain walls or in river beds.
The new NOCH Rubble is ideal for realising such drop-offs, rubble fields, as well as marvellous river and lake beds for your model landscape and also for adding perfect details.