Essential for Proper Speaker Fitment: Mounting Brackets are a required accessory for installing Pioneer tower speakers to ensure a secure, stable fit for optimal sound performance. Versatile Fit for Multiple Tube Sizes: Adjustable brackets accommodate tube diameters ranging from 1-7/8" to 3", allowing for secure installation on a variety of outdoor vehicles such as boats, wake surfers, ATVs, UTVs, RVs, and golf carts. Durable and Weather Resistant Design: Made from high-quality metal, these mounts provide long-lasting durability, ensuring resistance to outdoor elements, including moisture, salt, and UV exposure, for reliable use in marine and off-road environments. Easy Self-Installation Process: Package includes two sturdy metal brackets and four screws for a hassle-free installation. No special tools required—simply attach the mounts and secure your Pioneer tower speakers for a firm hold. Compatible Models: Designed specifically for Pioneer TS-ME Series tower speakers, including TS-ME770TC, TS-ME770TSW, and TS-ME770TSB models (speakers sold separately).