HandCranked Dynamo DIY Mechanical Reduction Gearbox Science

Welcome to my store, we have many kinds of price products, we launch new products every day, please follow my store and pay more attention, for more products, Please click on the seller information to enter our store to buy, we hope give you a pleasant shopping experience. Thank you and have a nice day!Mini Hand Crank Kids Children Boys Girls Fun Science Learning ToyDescription:100% and high qualityTransparent shell, help to observe progress and understand physical rulesGreat accessory for DIY mini motor, reduction gear box, light bulb and LED lamp etc.Material: PlasticColor: Transparent blueSize Chart:Size: approx. 60 x 30 x 25mm/2.36 x 1.18 x 0.98inchPackage Includes:1 Piece Hand Crank Hobby Craft Tool;Mini ;Educational Toy;Physics Learning;Science Kit;DIY Craft
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