A tilt indicator includes a plurality of compartments with {HEAD ~ one or more compartments} having {TAIL ~ an indicator} inside 
A tilt indicator includes a plurality of compartments with { HEAD ~ one or more compartments } having { TAIL ~ an indicator } inside
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH