Soft-mount arm guards for the Martian frame. Protect your arm ends from splintering and delamination not with these TPU arm guards. They're held in place by a vibration dampening pad that sits between the motor and frame, helping reduce the effects of mid-throttle jitters. These were designed around the Martian III x-frame, so make sure your arm ends are the same before purchasing. May require longer motor bolts. Available in a variety of colors.