Question about Zeller Present Bamboo

A piece of butter measuring 15 x 7 x 3 cm does not fit into the storage container as it is 19 cm long, 12 cm wide and 6 cm high. The height of 6 cm is sufficient, but the width of 12 cm is narrow, so that the butter with a width of 7 cm does not fit in perfectly. The length of 19 cm is sufficient for 15 cm of butter [product data].