Product Description: Product name: Technical Gears Pack Category: Technical Parts, Building Blocks, MOC Power Functions Weight10g Age Range> 6 years old Please be careful when use it and put it far away from children because of small parts QuantityTotal 16pcs Well packed in OPP bag Package: 4PCS - 40 Tooth gears 4PCS - 24 Tooth gears 4PCS - 16 Toot..