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The gear structure by means of tooth shaft and gear is easier and more compact. Made of brass material, durable, strong and wear-resistant. This product is small, light in weight, does not take up space and is easy to install. The item includes 1 x gear wheel, 1 x gear wheel, 2 x screws. If you have any question about the product, please do not hesitate to contact the CNBTR service and we will try our best to give you a satisfactory answer. › See more product details; Product description Specifications: Material:Brass Color:Brass Brand Name:CNBTR Size: Gear size: 0.5m, 60 teeth Diameter:31.2mm Overhanging platform:20 x 7mm/0.78\; Product description Specifications: Material:Brass Color:Brass Brand Name:CNBTR Size: Gear size: 0.5m, 60 teeth Diameter:31.2mm Overhanging platform:20 x 7mm/0.78\; Specifications: Material:Brass Color:Brass Brand Name:CNBTR Size: Gear size: 0.5m, 60 teeth Diameter:31.2mm Overhanging platform:20 x 7mm/0.78\