A sled that attaches to the bottom of the camera's front foot so the camera can be mounted on the bottom plate (base plate, K4.54362.0). Accepts 15 mm support rods. Compatible with ALEXA, ALEXA Plus, ALEXA Plus 4:3, ALEXA M body and Adapter Plate for EOS C300. Not compatible with ALEXA Studio, ARRIFLEX and ARRICAM cameras.