The rollers 29 are relatively inexpensive to replace and exhibit {TAIL ~ a high degree} of {HEAD ~ durability} 
The rollers 29 are relatively inexpensive to replace and exhibit { TAIL ~ a high degree } of { HEAD ~ durability }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD