Multiple Gear Size for OptionCan use different size gears to meet your need with different lenses. This set comes with 3 size gears.(M0.8-38T/M0.8-43T/M0.8-65T),you can also buy extra 0.5 78T and 0.6 64T gear for extension.
Standard 12x12 Connection Port,Flexible Gear BeltWork with speed crank and speed whip with standard 12x12mm connector.Flexible gear belt can be adjusted from 46mm to 110mm to be compatible with different lens.

