Also provided is {HEAD ~ an irregular shaped substrate} comprising {TAIL ~ a substrate} having a perimeter with at least one rounded corner and wherein the perimeter does not substantially form a square 
comprising
Also provided is { HEAD ~ an irregular shaped substrate } comprising { TAIL ~ a substrate } having a perimeter with at least one rounded corner and wherein the perimeter does not substantially form a square
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH