Specification Brand : D&D PowerDrive BulletPoint1 : The belts exceed USA RMA published ratings levels; They are designed to perform at the identical or higher level than all other major USA Manufacturer's belts of the same type BulletPoint2 : 640-8M-21 Synchronous Timing Belt OEM Part Number 640-8M-21 Belt Type 8M Timing Belt BulletPoint3 : Technical Specifications: (Inches) (mm) Outside Circumference 25.20 640 Top Width 0.83 21 Belt Depth 0.24 6 Material Neoprene Tooth Profile 8M BulletPoint4 : Package weight: 0.5 lbs CompatibleDevices : Car IncludedComponents : industrial-timing-belts ItemName : D&D PowerDrive 640-8M-21 Synchronous Timing Belt, Rubber, (Pack of 1) ItemPackageDimensions_Height : 32.9 centimeters ItemPackageDimensions_Length : 2 centimeters ItemPackageDimensions_Width : 24.5 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : industrial-timing-belts Manufacturer : D&D PowerDrive Material : Rubber ModelNumber : 640-8M-21 NumberOfItems : 1 PartNumber : 640-8M-21 ProductSiteLaunchDate : 2017-07-12T08:00:01.000Z StreetDate : 2017-07-12T00:00:01Z SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1 UnspscCode : 26111800