Waterproof shark fin antenna made from ABS plastic. Coated in piano paint with a bright, non-fading, and durable finish. Available in multiple colors. Features a 3M adhesive for secure attachment. Includes one shark fin antenna, one PET-S antenna cable, one 3M adhesive pad, and one pair of copper screw and nut. Shark fin dimensions: 16.4 cm (6.5 inch) length, 7.9 cm (3.1 inch) width, 6.7 cm (2.6 inch) height. Bottom hole dimensions: 9.8 cm (3.9 inch) length, 5.2 cm (2 inch) width. Designed for easy installation: attach the 3M adhesive to the bottom of the shark fin, remove the original antenna, secure the screw and nut onto the original antenna base, align the shark fin properly, and press down firmly for 2 minutes to ensure strong adhesion. Note: The bottom hole measures 9.8 x 5.2 cm. Ensure your antenna base is smaller than this for proper fit. If your antenna base is larger, consider a compatible larger model. Color-matched silica gel ring included: white and pearl white with white ring, silver with silver ring, gray and dark gray with gray ring, light red and deep red with red ring, all other colors with black ring.