Feature - 100% Brand new and high quality.Good accessories for Vehicle or remote control ,Provides a convenient choice for your DIY project Specification - Plastic Gears Model 092A, 9 Theeth, 0.5 Modulus, 5.5mm Outer diameter, 5mm Thickness, 2mm Hole Diameter Application - Plastic Crown Gears suit for a science DIY projects such as rc model car, model electric robot and windmill, education such as displaying how gear ratios work, and any other family small motor DIY project. More Choose - Our store have the most complete specs gears shown in the following description, which can meet your DIY needs. Package Content - 50pcs Plastic Gears 9 Teeth Model 092A Reduction Gear Plastic Worm Gears for RC Car Robot Motor