Minimize the roving hairiness and yarn faults. The roving twines on the presser finger when it runs through the flyer leg, and then winds upon the bobbin through a flyer finger guide. It can avoid creating Free Section by the flushing of high speed air-flow on the traditional flyer.Dimension of roving:桅150脳400,桅135脳400,桅130脳320 Maximum speed:1600r/min Applicable to machine:All suspended flyer roving frames made in China.