• Standard Feathers are more rigid than UltraFLEX Feathers. This is achieved by a thicker neck on the feather hinge. The material is the same, only a different color to visually distinguish the UltraFLEX Feather. • Firm feathers work well for all pressure ranges–high or light tension • Ideal for applications requiring high tension on applied pressure • Standard feather is sold with our FeatherPRO Featherboard
