Application - Plastic Crown Gears suit for a science DIY project such as RC model car, model electric robot, education such as displaying how gear rates work, and any other family small motor DIY project.
More Choose - Our store have the most complete gears shown in the following description, which can meet your DIY needs.
Package Content - 20pcs Plastic Gears 9 Teeth Model 092A Reduction Gear Plastic Worm Gears for RC Car Robot Motor