Specification Brand : TMP1105 BulletPoint : Ships within 7 days BulletPoint1 : The gear is made of 45# steel, and the surface maybe with rust on some hardened gears. BulletPoint2 : Package List: 1pc Spur Gear 1.5M 50Teeth BulletPoint3 : Gear inner hole tolerance is positive 0-0.03, with locking hole. BulletPoint4 : Batches of different parameters may change slightly, please prevail in kind. BulletPoint5 : Links are only the price of the gear, if you need to support the rack, you need to place anther order. Color : Blue ExternallyAssignedProductIdentifier : 8306070476311 ItemName : TMP1105 1pc 1.5M 50Teeth Spur Gear with Stage Motor Boss/Convex Gear Inner Hole 10mm Pinion Rack Transmission (Hole Diameter : 10mm) ItemPackageQuantity : 1 ItemTypeKeyword : rack-and-pinion-gears Manufacturer : 唐铭鲆544162-US Material : Metal NumberOfItems : 1 NumberOfTeeth : 25 PartNumber : 唐铭鲆544162-US ProductDescription : The gear is made of 45# steel, and the surface maybe with rust on some hardened gears. Package List: 1pc Spur Gear 1.5M 50Teeth Gear inner hole tolerance is positive 0-0.03, with locking hole. Batches of different parameters may change slightly, please prevail in kind. Links are only the price of the gear, if you need to support the rack, you need to place anther order. ProductSiteLaunchDate : 2021-09-10T05:31:48.944Z Size : 10mm Style : Ground Alloy Steel Spiral Miter Gears UnitCount : 1 UnspscCode : 52140000