Shark Fin Antenna Base Size: 6.7 "x2.8"x2.3'' (17cmx7cmx5.8cm), If your original antenna base size is less than 17cmx7cmx6.7cm and roof is flat, then this shark fin antenna will fit perfectly with your car. Best Replacement: Shark fin antenna uses high-quality Internal PET/FPC material chip and pure copper wire, which can smoothly receive FM/AM/GPS signals, is waterproof, sun-proof and durable. Product Material: Automotive shark fin antenna adopts high-quality ABS material, durable and waterproof, not easy to fade. Excellent Design: Unique stream lined shark fin design make itstylish and luxurious for your vehicle，reduce wind resistance when driving at high speed. Easy to Install: Double-sided adhesive paste, easy to complete the installation, firm and not easy to fall off, remove the embarrassment of loosening and falling off during driving.