{HEAD ~ The hook type fastener} generally has an integral film backing which film backing has a porosity of from 0.0001 to 0.005 cm3, a backing thickness of from 25 to 200 μm, a stiffness of from 10 to 2000 Gurley units and {TAIL ~ a hook} or projection containing surface area of at least 10 cm2 
{ HEAD ~ The hook type fastener } generally has an integral film backing which film backing has a porosity of from 0.0001 to 0.005 cm3 , a backing thickness of from 25 to 200 μm , a stiffness of from 10 to 2000 Gurley units and { TAIL ~ a hook } or projection containing surface area of at least 10 cm2
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH 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 OTH OTH OTH OTH OTH OTH OTH OTH