They are each between 15 and 20 inches [38 - 51 cm] across, their tops seem to be flat, and every one appeared to have six sides.
فقطر كلٍّ منها يتراوح بين ٣٥ و ٥٠ سنتيمترا ،‏ وتبدو مسدَّسة الاضلاع برؤوس مسطحة .‏