Description: _x000D_ If you are a model amateur, you would know that gears, pulleys and worms are essential and necessary parts for models. Aircraft, automobiles, boats, robots and other small production of science and technology will all need to use those parts. Here we provide many gears of different sizes and many other accessories which may meet your basic needs for model making. They are also good replacement of old or broken parts. _x000D_ _x000D_ _x000D_ Features: _x000D_ Made of high quality plastic, wearable and long service life. _x000D_ These products are for toys gear pulley and other spare parts, suitable for DIY model technology production. _x000D_ There are six different set for your option including many kinds of gear parts and you can find one that better meet your need. _x000D_ _x000D_ Small parts, easy to use, great model making accessories for all kinds of cars, robots, etc. _x000D_ They are also good replacement of old or broken parts._x000D_ _x000D_ _x000D_ _x000D_ Specifications: _x000D_ Main Material: Plastic _x000D_ Type: 34kinds, 60kinds, 64kinds, 75kinds, 80kinds, 85kinds(optional) _x000D_ _x000D_ _x000D_ 34kinds: _x000D_ _x000D_ Aperture Diameter(mm)_x000D_ Outside Diameter(mm)_x000D_ Pitch Diameter(mm)_x000D_ Thickness(mm)_x000D_ _x000D_ 8Teeth_x000D_ 1.9_x000D_ 5_x000D_ 4_x000D_ 4.8_x000D_ _x000D_ 10Teeth_x000D_ 1.9_x000D_ 6_x000D_ 5_x000D_ 6_x000D_ _x000D_ 10Teeth_x000D_ 1.9_x000D_ 6_x000D_ 5_x000D_ 9.07_x000D_ _x000D_ 10Teeth_x000D_ 2.4_x000D_ 6_x000D_ 5_x000D_ 5_x000D_ _x000D_ 16Teeth_x000D_ 1.9_x000D_ 9_x000D_ 8_x000D_ 5_x000D_ _x000D_ 20Teeth_x000D_ 1.9_x000D_ 11_x000D_ 10_x000D_ 1.5_x000D_ _x000D_ Double Layer20/10_x000D_ 1.9_x000D_ 11/6_x000D_ 10/5_x000D_ 1.5/3.5_x000D_ _x000D_ Double Layer20/10_x000D_ 2.0_x000D_ 11/6_x000D_ 10/5_x000D_ 1.5/3.5_x000D_ _x000D_ 24Teeth_x000D_ 1.9_x000D_ 13_x000D_ 12_x000D_ 1.5_x000D_ _x000D_ 30Teeth_x000D_ 1.9_x000D_ 16_x000D_ 15_x000D_ 1.5_x000D_ _x000D_ 30Teeth_x000D_ 2.4_x000D_ 16_x000D_ 15_x000D_ 1.5_x000D_ _x000D_ Double Layer 30/10_x000D_ 2_x000D_ 16/6_x000D_ 15/5_x000D_ 1.5+3.5_x000D_ _x000D_ 32Teeth_x000D_ 1.9_x000D_ 17_x000D_ 16_x000D_ 1.5_x000D_ _x000D_ 32Teeth_x000D_ 2.9_x000D_ 17_x000D_ 16_x000D_ 2.5_x000D_ _x000D_ Double Layer 32/10_x000D_ 1.9_x000D_ 17/6_x000D_ 16/5_x000D_ 1.5+3.85_x000D_ _x000D_ Double Layer 32/10_x000D_ 2.0_x000D_ 17/6_x000D_ 16/5_x000D_ 1.5+3.85_x000D_ _x000D_ Double Layer 32/20_x000D_ 2_x000D_ 17/11_x000D_ 16/10_x000D_ 1.5+3.93_x000D_ _x000D_ 36 Teeth Eccentric Gear_x000D_ 1.9_x000D_ 18_x000D_ 20_x000D_ 1.5_x000D_ _x000D_ Double Layer 46/10_x000D_ 2_x000D_ 23/6_x000D_ 23/5_x000D_ 1.4_x000D_ _x000D_ 48 Teeth_x000D_ 1.9_x000D_ 25_x000D_ 24_x000D_ 1.5_x000D_ _x000D_ 48 Teeth_x000D_ 2.4_x000D_ 25_x000D_ 24_x000D_ 1.5_x000D_ _x000D_ 56 Teeth_x000D_ 1.9_x000D_ 29_x000D_ 28_x000D_ 1.5_x000D_ _x000D_ Single Layer 80 Teeth_x000D_ 1.9_x000D_ 41_x000D_ 40_x000D_ 1.8_x000D_ _x000D_ Single Layer 120 Teeth_x000D_ 1.9_x000D_ 61_x000D_ 60_x000D_ 1.8_x000D_ _x000D_ Sector Gear 28 Teeth_x000D_ 1.9_x000D_ 29_x000D_ 28_x000D_ 1.8_x000D_ _x000D_ Rack 83 Teeth_x000D_ Inner diameter 2.05-2.55mm, length 125mm, width 4mm, thickness 7mm_x000D_ _x000D_ Crown Gear 83 Teeth_x000D_ 1.9_x000D_ Crown gear outer circle diameter 12.65_x000D_ 2.9+3.85_x000D_ _x000D_ Worm_x000D_ 1.9_x000D_ Diameter 5.9, height 9_x000D_ _x000D_ Worm_x000D_ 1.9_x000D_ Diameter 5.9, height 6.75_x000D_ _x000D_ Pulley_x000D_ 1.9_x000D_ Slot inner diameter 4_x000D_ Outer diameter 5.4_x000D_ Slot width 2_x000D_ _x000D_ Pulley_x000D_ 1.9_x000D_ Slot inner diameter 5_x000D_ Outer diameter 9_x000D_ Slot width 2_x000D_ _x000D_ Pulley_x000D_ 1.9_x000D_ Inner diameter 13_x000D_ Outer diameter 16_x000D_ Slot width 2_x000D_ _x000D_ Pulley_x000D_ 1.9_x000D_ Inner diameter 12.5_x000D_ Outer diameter 18_x000D_ Slot width 2_x000D_ _x000D_ Pulley_x000D_ 1.9_x000D_ Inner diameter 21_x000D_ Outer diameter 24_x000D_ Slot width 2_x000D_ _x000D_ T Connector_x000D_ Through hole inner diameter 2.0mm, blind hole inner diameter 1.9mm_x000D_ _x000D_ 5 Belts_x000D_ Folded length: 60mm, 60mm, 40mm, 25mm, 20mm_x000D_ _x000D_ _x000D_ _x000D_ _x000D_ 60kinds: _x000D_ Single Layer Gear: 8 kinds, maximum model: 482A _x000D_ Spindle Gear: 10 kinds, maximum model: 182A _x000D_ Double Layer Gear: 12 kinds, m