I designed a table top hydraulic clay extruder.
Which has a clay saver mode it's like having three extruders in one
I purchased a set of hollow dies , You can use these dies to make hollow forms or solid clay shapes.
Each die has a center part . This is mounted in the centre of the adapter ring using a small screw. The second part of the die sits in front of the adapter ring , slide the die into your extruder
To use the dies for making solid clay shapes you only need to insert the large die into your clay extruder
The product is well made easy to clean . After I've used the dies I spray a small amount of WD40 on the small screw and in to the threaded part in the adapter ring .