This in assortment of target holders for various sports.
Steel Target Face
These are rectangular steel plates used to mount the target and protect the sensors. When installed on the sensor modules, the target is 10mm from the sensors.
Blank plate that lets you locate the mounting holes in a convenient place
Frame for the sensors on one side and SIUS paper mask on the other. The holes correspond to the SIUS mask mounting holes. 4 small bars in the holes will secure the masks in place.