{TAIL ~ The device} has a clamp arrangement for holding {HEAD ~ a sample} of foam sheet material 
{ TAIL ~ The device } has a clamp arrangement for holding { HEAD ~ a sample } of foam sheet material
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH