Specification: Material: Rubber, Iron Quantity: 1 PCS Color: Black Weight: 33 g Antenna Size: 9.06 × 0.59 inches M5 Threaded Adapter Size: 0.65 × 0.19 inches M6 Threaded Adapter Size: 0.68 × 0.23 inches Package Includes: 1 Car Antenna, 1 M5 Threaded Adapter, 1 M6 Threaded Adapter Feature: Flexible, Waterproof, Durable Fit Type: Universal Fit Why is this car antenna worth purchasing? -It has a lightweight structure that does not place extra burden on your car roof. -This antenna enhances signal reception and lets you enjoy clearer audio while you sit inside the car. -The antenna uses premium rubber and the adapter uses quality iron, so the build is durable and supports long-term use.