Hobbypower CNC Aluminum Batteries Extender for Zhiyun Z1 Handheld Gimbal Lengthen Runtime This extender is use to add the length of the gimbal handle, then can use 18650 battery to replace the original 16340 battery to get long runtime. Fit for Z1-Pround, Z1-Rider, Z1-PRO, Z1-Smooth Length: 67mm