Assertion: roller skate's wheel | /r/MadeOf | polyurethane
Facets:
value: with different hardness values
type: OTHER
value: typically
type: DEGREE
Source sentences:
text: Today, most wheels are made from polyurethane.
text: The wheels are typically made of polyurethane with different hardness values which are measured according to the A durometer scale.
text: Today, most wheels are made from polyurethane.
text: The wheels for inline skates are made from polyurethane, often shortened to urethane.
text: The wheels for inline skates are made from polyurethane, often shortened to urethane.