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. ItemName : Jason Industrial 725-5M-20 5mm Tooth Profile HTB Timing Belt ItemPackageQuantity : 1 ItemTypeKeyword : industrial-timing-belts Manufacturer : JASON INDUSTRIAL NumberOfItems : 1 PartNumber : 725-5M-20 ProductDescription : THIS LISTING IS FOR ONE PIECE - 725-5M-20 - RPP TIMING BELT - JASON INDUSTRIAL - FACTORY NEW! ProductSiteLaunchDate : 2012-11-19T21:55:58.189Z