A 3d file for this swirl patterned. Made for cnc,3d printing and so on. The model for all formats sits approximately at 60cm high and 43cm wide.The interior hole sits at approximately 58cm deep and 38cm wide (12cm neck hole width) . The wall thickness sits roughly at 1-3cm from the sides and 2cm at the bottom.Of course the model can be resized big or small as you see fit.

Resized to 30cm height for example you will have a width of 22cm. A hole at 29cm deep and 19cm width(6cm neck hole width).The wall thickness sits roughly at 6mm to 1.5cm from the sides and roughly 9mm at the bottom.