About: http://webisa.webdatacommons.org/383738386

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The exterior surface of the wheel may be a material such as neoprene rubber that provides adequate friction for rotation with the tape as the tape is pulled due to the rotation of the head around the conductors.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com