Finely built, fit and finish is good throughout, the engine runs well on air. We liked the base, elegantly scalloped out to accommodate the flywheel.
| length/inches | 6 1/2 |
| width/inches | 4 |
| height/inches | 6 1/2 |
| wheel material | Steel flywheel, 2 inch diameter |
| cylinder material | gunmetal |
| valve type | slide |
| lubricator type | displacement |