Specification Brand : 3Dman BulletPoint1 : Necessary accessories, compatible with Ender 3 V2, Ender 3 Pro, Ender 3 Series, Ender 5 Pro, Ender 5 Plus, CR10 Series and Other 3D printers. BulletPoint2 : Suitable for 2020 V-series aluminum profiles, adjust the sliding smoothness by adjusting the hex eccentric column. BulletPoint3 : Pulley Diameter: about 24mm/ 0.9 inch. Pulley Height: about 11mm/ 0.4 inch. BulletPoint4 : Material: Back Plate is made of high quality cold rolled sheet material, pulley is made of high quality polyformaldehyde, very durable and smoothy. BulletPoint5 : Exact replacement for the stock carriage plate. Nice that new wheel assemblies were also included. ExternallyAssignedProductIdentifier1 : 0791738580321 ExternallyAssignedProductIdentifier2 : 791738580321 ItemName : 3Dman Extruder Back Support Plate with 3pcs 2020V POM Pulley for 3D Printers ItemPackageDimensions_Height : 15.0876 centimeters ItemPackageDimensions_Length : 3.5052 centimeters ItemPackageDimensions_Width : 12.0904 centimeters ItemTypeKeyword : 3d-printer-accessories Manufacturer : 3Dman NumberOfItems : 1 PartNumber : POM-ZJ ProductDescription : Package Included: Extruder Back Support Plate with bearing × 1 ProductSiteLaunchDate : 2021-01-09T08:39:33.256Z SupplierDeclaredDgHzRegulation : not_applicable UnspscCode : 40150000