B114MXL: 114 teeth circumference: 231.648mm B115MXL: one hundred fifteen teeth circumference: 233.68mm B118MXL: 118 enamel circumference: 239.776mm B106MXL: 106 tooth circumference: 215.392mm Product parameters: Pitch =2.032mm thickness =1.14mm top =0.51mm width =0.76mm