Electric Generator: Brushed type with LED lamp. Model: M14-22-D Dual Cylinder Engine. GK9-370 220V Portable Electric Bag Stitching Closer Sack Seal Sewing Machine. 1 x M14-22-D Dual Cylinder Stirling Engine Model.
M14-22-D Dual Cylinder Engine Model, 1:6 Scale, STEM Kit Working Quartz Tube
M16-22-D Dual Cylinder Engine Model, 1:6 Scale, Working Brass & Steel STEM Kit
M14-22-D Dual Cylinder Engine Model, 1:6 Scale, Working Quartz Tube STEM Kit
Alpha Stirling Dual-Cylinder Engine Model, Working Brass & Alloy Display
