Insulation flask with lid

For experiments on thermal insulation, mixing temperature, specific heat of solid substances, heat of fusion and pressure change at constant volume;
consisting of 2 aluminum beakers, an insulating container in between, transparent plastic lid, with stopper for inserting a thermometer, opening (D=27 mm) with lid and a simple stirrer
Filling volume: approx. 150 and 700 ml
Dimensions: D= approx. 100 (105) mm, H= approx. 110 mm
Mass: approx. 190 g