Gearbox Toy Car Playmobile Gear Rack Pulley Belt Worm Gear Single Double Gear<br>Specifications:<br>Material: PlasticLocation: External gearTooth surface hardness: Hard tooth faceGearbox including gear， rack， pulleys， belts， and other transmission parts， photo taken in kind.Many accessories are factory own design and production of other places to buy less than the full range of accessories， machinery accessories essential research laboratory， science activities， personal diy model.<br>Optional type: (Please choose what you need)<br>Type 1: 49 kinds of gear packType 2: 58 kinds of gear packType 3: 11 kinds of gear packType 4: 11 kinds of spindle gear packType 5: 10 kinds of crown gear packType 6: 19 kinds of gear packType 7: 80 kinds of gear pack + 10 rubber beltType 8: 69 kinds of gear packType 9: 61 kinds of gear packType 10: 23 kinds of gear pack<br>Package included:<br>1 x Set of Gear