The dimensions of the suitcase are 39 cm (width) x 24 cm (depth), the height is not explicitly stated on the official product page, but comparable models with a volume of 45 litres usually have a height of approx. 55 cm.
As the exact height is not included in your in-house data, I recommend checking the manufacturer's specifications. According to the official product page of a comparable Beibye hard suitcase with a volume of 45 litres, the dimensions are 39 x 24 cm (width x depth), the height is not explicitly mentioned there, but other sources state 55 cm.
If you need the exact height, we recommend taking a look at the manufacturer's website or the product packaging.