Here's what other sites are saying:
The Switchback X2 Cartridges pack from Voile makes replacing your X2's springs super easy and quick. 4 extra cartridges included.
- Mountain Gear
Set of 4 Spring Cartridges for the Switchback X2 binding.
Voile Switchback Spring Cartridges
Voile Switchback Binding
Voile Switchback Plugs
Voile Switchback Backcountry Kit
Voile Switchback X2 Backcountry Kit
Voile Switchback X2 Telemark Touring Binding
Voile Hardwire 3-Pin Spring Cartridges
TwentyTwo Designs Axl
$320 - $339