Description: fresh and advantageous 60 different kinds of features and equipment in only one package, which makes it an ideal choose for laboratories, science education, DIY models, RC-airplane/helicopter repair, etc. This item is for toys gear spare aspects package, chiefly for zero modulus of each gear for DIY toys with use. Our product entails gear, rack, pulleys, belts, and diverse transmission parts, and all of the exhibit pictures have been taken in kind. Specification: Do DIY science and small production, product design, mechanical model Material: Plastic Color: White Quantity:1 Set, (60pcs) Note: There maybe 1 or 2Pcs mistake, please understand and forgive us. Due to the difference between diverse monitors, the picture will not replicate the actual shade of the item. Thank you! Package includes: Single gear:8 varieties , the most important model 482A Spindle gear:9 kinds , the most important mannequin 142A Double gear:12 forms , the most important model 46082A Crown gear: nine types , the biggest mannequin C323A Pulleys:7 varieties , the most important mannequin 242A Blue motor gear:2 kinds Belt:4 kinds Sleeve:4 kinds Worm:2 varieties Rack:1 variety Copper teeth:1 type Bevel:1 type '