<http://schema.org/description>
"&lt;p&gt;Riten Industries has designed a spring-loaded live center that automatically maintains proper axial pressure on the workpiece.  Four interchangeable, color-coded springs provide light, medium, heavy and extra-heavy linear force.  The self-contained model can be chucked and is said to be suitable for multifunction turning centers with subspindles and programmable tailstocks. &lt;/p&gt;"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mmsonline.com/products/live-center39s-color-coded-springs-provide-linear-force>