1. Material: zinc Alloy 2. Wiring hole: 1X0/4GA IN-3X0/4GA OUT 3. Comes with a conversion sleeve, which can be removed to fit 0GA- 4GA 4. Polycarbonate plastic shell, high temperature resistant, not easy to break, and higher safety 5. Size: 73.5x55.3x33.6 6. Weight: 171g