Includes Stinger RKFR5 Fast Rings & Infinity REF507F Speakers for enhanced car audio experience Reduces panel vibration and enhances mid-bass response for improved sound quality Easy peel & stick installation with foam rings to prevent destructive wave interference Infinity REF507F features edge-driven tweeters and adjustable output for clear highs Plus One woofers deliver higher bass output and optimized frame fits most vehicles This bundle includes a Stinger RKFR5 Roadkill Fast Rings 5" & 5.25" and an Infinity REF507F 5-1/4” Reference Series Coaxial Two-way Car Audio Speaker. The Stinger RKFR5 Roadkill Fast Rings kit enhances speaker output, reduces rear reflections, and improves audio projection in the car cabin. Features 3-piece foam ring system, fits 5" & 5.25" speakers, minimizes wave interference, easy peel & stick installation, and comes with gasket, middle ring, and circular foam pad for better sound quality. The Infinity REF507F Reference Series Coaxial Speaker offers edge-driven textile tweeters, adjustable tweeter output level, oversized Plus One woofers for enhanced bass and midrange performance, and optimized frame size for a universal fit. Features 45W RMS power handling, 135W peak, 92dB sensitivity, 67Hz – 21kHz frequency response, and 3.0 ohms impedance. Includes 1 pair of coaxial speakers, foam mounting tape, and owner’s manual. Upgrade your car audio experience with this comprehensive bundle, providing enhanced sound quality, easy installation, and compatibility with various vehicle types. Ideal for music enthusiasts seeking crisp highs, deep bass, and clear midrange frequencies. Enhance your driving soundtrack today!