Zeta Pivot Perch Fp 3-Finger ZE43-2311 High quality CNC machined rotating clutch perch with CNC Machined Pivot Lever Clutch perch is made of CNC machined A7009 aluminum. Lever is made of CNC machined aluminum for durable construction. Provides 2 different lever ratios, light pulling and accurate clutch control by changing position of Ratio Device ( PATENT PENDING ). Best to use with PIVOT LEVER CNC brake lever. 3 finger and 4 finger lever arm models are available.