1. Material: metal + ABS 2. Motor: full copper motor 3. Voltage: 12V (for small cars) 24V (for trucks) 4. Multi-angle free adjustment, 180 degrees up and down manual adjustment, 90 degrees left and right electric rotation, 180 degrees manual left and right 5. Two-position control switch, one key control, convenient and quick to use 6. High elasticity clamp plate, safe not to fall off 7. Thickened metal rod, stable and firm connection, anti-oxidation and anti-rust 8. Tight metal grille, not easy to crush, effectively prevent hand pinching 9. 4 metal fan blades, stable and durable, no deformation, soft and comfortable wind 10. 1.5m long power cord, independent control switch, cigarette light plug for quick and easy application 11. 12V 24V suitable for various models 12. Size: 10 inch 27×31 cm, 8 inch 22×29.5 cm, 6 inch 18×27 cm 13. Weight: 10 inch 114g, 8 inch 100g, 6 inch 90g