Wall thickness 1mm.
This model is based on the sizes and description from here. http://rao.revues.org/680?lang=en (Figure 11 and 12)
Also available as:-
Small for Plastic http://shpws.me/tTyc
Medium for Plastic http://shpws.me/tTy4
Large for Plastic http://shpws.me/va7M
Small for Ceramic http://shpws.me/tXbx
Medium for Ceramic http://shpws.me/tUyM