Longer Z-Axis arm for Feiyu Tech G3 Ultra 3-axi stabilizer. It allows camera to Roll more than default 45 degrees per side. By using this arm rotation can be 270 degrees on stock control cable and if you change the cable then it can be even more. It is direct replacement for factory made arm. Control cable goes through arm so it looks much cleaner. Comparison picture shows the difference between original and printed part. I printed it by using polycarbonite, but ABS or PLA is also fine. Please use atleast 40% infill because too thin or flexible arm makes Gimbal to oscillate and brick itself.