from about 1% to {HEAD ~ about 20%} by weight of {TAIL ~ an abrasive composition} comprising 
from about 1 % to { HEAD ~ about 20 % } by weight of { TAIL ~ an abrasive composition } comprising
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH