Gear: Speed Reducer NMRV40 Ratio1:10 CPG
Tape: paper masking violet 1 x 15yds milspec
Bolt: taper hex. m4x25mm
Nut: hex. roughen 1/2inch
Rib base sheet 2.2 x 18cm (red color)
Valve: electromagnetic valve 12v-1/2[n/c]