Specification Brand : Jason Industrial BulletPoint1 : Conforms to RMA Engineering Standard BulletPoint2 : Comparable to Gates, Browning, Goodyear, Dayco, Bando, PIX, Bestorq, Grainger BulletPoint3 : Timing belts are measured by Length, Tooth Pitch, then width. The first number is the length, the letter (and sometimes number) refer to the tooth and the final number is the width. Some are measured in mm and others in inches. If you are not matching a belt number, you should contact us for clarification prior to an order. BulletPoint4 : ✅【Accurate transmission】High-precision production, more accurate dimensions. It does not slip when working and has a constant transmission ratio. The noise is low and the service life is long. BulletPoint5 : ✅【Wide range of uses】Widely used in 3D printers, CNC, milling machines, drilling machines, CNC lathes, gear forming machines, or other linear transmission applications. Color : black CompatibleDevices : Vacuum Cleaner ExternallyAssignedProductIdentifier1 : 0650003360269 ExternallyAssignedProductIdentifier2 : 650003360269 IncludedComponents : GT2 Timing Belt ItemName : Jason Industrial 390L050 3/8-inch (L) Pitch Standard Timing Belt ItemPackageDimensions_Height : 12.5 centimeters ItemPackageDimensions_Length : 2.2 centimeters ItemPackageDimensions_Width : 10.5 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : industrial-timing-belts Manufacturer : Jason Industrial Material : Rubber ModelNumber : 222-3M-05 NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : 390L050 ProductDescription : PN: 390L050