I installed a 120mph speedo and a v8 tach and the pointers were mismatched. They are metal. I cleaned mine with alcohol on a cotton ball then repainted them with reflective paint for gauge pointers. I used this brand in red but here is a link for orange.
Amazon product ASIN B0031VVID8View: https://www.amazon.com/ORANGE-Needle-instrument-cluster-gauges/dp/B0031VVID8
Here is white needle paint.
Amazon product ASIN B0031VVID8View: https://www.amazon.com/ORANGE-Needle-instrument-cluster-gauges/dp/B0031VVID8
Here is white needle paint.
Dash Restoration Parts - Needle Paint - Whitegauges.net
www.whitegauges.net