Specification AgeRangeDescription : adult Brand : Xzeit BulletPoint1 : Number of teeth: 16 teeth BulletPoint2 : Module: 0.4; Material: brass BulletPoint3 : Inner hole: 2mm tight fit BulletPoint4 : Total thickness: 4 mm BulletPoint5 : After strict manufacturing process, made of high quality brass material, hard and durable, has long service life.Small and light, easy to carry and convenient for installation, has good performance. Color : 16 Teeth ExternallyAssignedProductIdentifier : 6435659371296 ExternallyAssignedProductIdentifier1 : 6435659371401 ExternallyAssignedProductIdentifier2 : 6435659371388 ItemName : Xzeit Motor Brass Pinion Gear,Tooth Gear, 16 Teeth Copper Gears M0.4 2mm Hole (OD 7.2MM Thickness 4mm) Small Pinions G-S (Hole Diameter : 2mm, Number of Teeth : 16 Teeth) ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 3 centimeters ItemPackageDimensions_Width : 2 centimeters ItemPackageQuantity : 1 ItemShape : Square ItemTypeKeyword : worm-gears Manufacturer : Xzeit Material : Brass ModelName : Xzeit ModelNumber : Xzeit NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : Xzeit ProductDescription : Our shop is based on the principle of "service and quality first" and we look forward to welcoming every customer.16 Teeth 2mm GearSmall module gear is used for toy accessories, for mini cars, for remote control aircraft etc.How to calculate the calculation of gear? (for reference only)Gear module M = outer diameter ÷(number of teeth +2)Outside diameter = Gear module ×(number of teeth +2)Thank you for your visit, any problems can be contacted and resolved in person with the shop! ProductSiteLaunchDate : 2023-11-05T13:23:40.506Z Size : 2mm Speed : 7 rpm Style : Toothbrush UnitCount : 1