THE SPIDER LINER -The Hatchback frame is a 10/18 one-piece steel CNCed frame, no casting. -One inch 8 wrapped coils wrapped with 24 gauge wire around a 3/8 99.9 pure iron core, with a 47 capacitor. -18 gage laser cut blue steel springs.No need for bending. -Silver contact screw. -Specialized cut out armbar for power lining. -All other parts are 100% American made, including the boxes. -Voltage 5.2-7.5 -pushes 5’s-18 round liners.