Product name: gear motor; Voltage: DC 12V; Nominal speed: 150 rpm Shaft size: 12 x 4 mm / 0.47 'x 0.16' (L * D); Gearbox size: 1.9 x 2.5 cm (L * D) Total size: 5.3 x 2.5 cm / 2.1 cm x 1 '(L * D); Total length (pin included): 6.7cm / 2.6 'Material: metal, electronic parts; Color: silver tones Weight: 86g