This material is sufficiently firm enough to maintain its shape but sufficiently soft enough to provide for a sound insulation between {TAIL ~ the sleeve} 12 and {HEAD ~ a pipe} 34 
This material is sufficiently firm enough to maintain its shape but sufficiently soft enough to provide for a sound insulation between { TAIL ~ the sleeve } 12 and { HEAD ~ a pipe } 34
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH