Helps protect low-mount servos and wiring from getting banged up while crawling/bashing. Has drain holes and channel so when you get your rig wet, water will drain/evaporate and doesn't sit in the base. Recommended to cover the bottom screws with liquid tape or equivalent to stop rust. Do the same to the wire where it exits the servo. Fits 20mm x 40mm servo.  Note: created two versions, but will likely only use the front version (with the angle cut).