This 4" black *TPO roller end cap has a 1/2" inner shaft and is made in the USA.
*Thermoplastic Polyolefin Elastomer (TPO) is a compounded Olefin /Rubber composite that is a great replacement for rubber because of its material properties.
- Special blended material provides excellent stiffness.
- Great low temperature impact performance.
- Non-marking to boats.
- Notable UV stability.