Please notice the bag is flexible.  Dimensions below is for your reference.
The actual size can be larger.

Size:              W × D × H – 560× 340× 360 mm (outside)
Size:              W × D × H – 500× 330× 350 mm (inside)

With
2PCS  KOS32011  1/10 Buggy Bag Medium Drawer 245x310x120mm
Size:              W × D × H – 240× 310× 120 mm (outside)
Size:              W × D × H – 230× 285× 115 mm (inside)

1PCS  KOS32012  1/10 Buggy Bag Large Drawer 470x310x180mm
Size:              W × D × H – 470× 310× 180 mm (outside)
Size:              W × D × H – 460× 285× 175 mm (inside)