... PH: pitch 1.6, belt thickness 3, wedge angle 402) PJ: pitch 2.34, belt thickness 4, wedge angle 403) PK: ... pitch 3.56, belt thickness 6, wedge angle 404) ... PL: pitch 4.7, belt thickness 10, wedge angle 405) PM: pitch 9.4, belt thickness 17, wedge angle 40Advantages ... high quality,soon delivery,warm service!!!! Rubber Ribbed Belt