Specification Brand : Yichu Color : black Label : One First Manufacturer : One First MaterialType : PU NumberOfItems : 1 PartNumber : HTD3M-15PU-20M ProductGroup : BISS Basic ProductTypeName : MECHANICAL_BELT Publisher : One First Size : PU-20Meter SmallImage_Height : 75 SmallImage_URL : https://m.media-amazon.com/images/I/51pbuTkjtIL._SL75_.jpg SmallImage_Width : 75 Studio : One First Title : HTD 3M Open Ended PU Timing Belt Pitch 3mm Width 15mm Length 20 Meters for CNC Laser Engraving Machines