<http://schema.org/description>
"Ronstan's Nylatron Sheaves are suitable for use with wire or rope.\r\nNylatron is a unique plastic material, cast of a partially cross-linked polyamide compound that has been modified with a filler.\r\nThe result is a very hard and durable sheave, with self-lubricating low-friction properties."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.apsltd.com/45mm-nylatron-sheave.html>