This gear package contains a comprehensive, we expect the axles, tires, gears, bushings, which have copper gear, umbrella teeth, rack, there are 2.3,3.17 gear, so the basic buy back there is always available! Personal decision needs!
This gear is covered with a more comprehensive, spindle, single, double, crown gear, pulley, rack, bevel gear, copper gear, bushings, axles, tires, rubber bands and so on
The most distinctive gear is: 36MM yellow 2mm hole pulley, rack, four-wheel drive teeth, 28 teeth 2mm fan teeth, there are 30-100mm axles, 30mm diameter wheel wheel five wheels!
Axle length of 30mm, 50mm, 70mm, 100mm, shaft diameter is 2mm, the two.
Five wheel wheels: 4 outer diameter 30mm, bore 2mm ,.
Gears are mostly 2mm aperture (tight or loose), in addition to a 81.5A spindle hole is 1.5mm, there are two crown is 2.5mm, there is a crown gear C303A is 3mm, a 15 teeth 2.3mm hole and 3.17mm hole.