Prime+ Cartridges Bugpin Round Liner Option:20 Pack two 10-turn potentiometers for precise

two 10-turn potentiometers for precise adjustments of each output

the Critical Wired Foot Switch features a large surface area for easy engagement with a non-skid rubber bottom which allows for a sturdy setup

Cartridges are universally compatible

Small and light

precision diamond knurling for a secure grip

Prime+ Cartridges Bugpin Round Liner Option:20 Pack two 10-turn potentiometers for preciseIntroducing the enhanced Prime+ Cartridge: redesigned with a stronger membrane for superior stability and increased reliability while maintaining protection from back flow. PRIME demonstrates that you can achieve high quality in an affordable needle cartridge.