Screw type, complete with one each of :- Adaptor plate for 38mm dia tube, 75mm dia tube, 100 mm dia tube or mould, 150mm dia tube or mould. Plunger Adaptor for 38 mm dia tube, 75 mm dia tube, 100 mm dia tube or mould, 150 mm dia tube or mould. Stand to obtain three 38 mm dia sample from 100 mm dia sample.