1” SCREWBALL MOUNTING SYSTEM –Including a 1” ball connector base features the AMPS hole pattern, it allows for direct installation on boats, or flat surfaces. And a 1” ball track mount which compatible with most standard track systems, like YakAttack, Scotty, RAM Tough-Track, and other kayak or boat accessory rails. Easily slide and lock into place without drilling—ideal for kayaks, fishing boats, and adjustable rig setups. Equipped with a Camera Connection Mount - It has wide compatibility across brands and devices fits garmin Striker, Echomap, DriveSmart, Dezl; Lowrance Hook Reveal; Humminbird Helix, Solix; as well as GoPro/action cameras, fleet monitors, marine electronics, and rugged tablets. 360 ° Rotating Safety Clip – The phone holder clip adjust to hold smartphones 2.36"–3.8" wide and up to 0.6" thick. It is suitable for all sizes of Apple phones, even under shaking conditions, it can keep the phone stable and not fall off. UNIVERSAL PHONE HARNESS & TETHER – Includes a flexible silicone harness and steel coil tether with locking carabiner to keep your phone secure. It can effectively prevent it from falling off when you pick up your phone to answer a call even during rough conditions on the water. Oversized Knob for Effortless Adjustment - The enlarged and widened wing-style knob is designed for maximum usability. It offers a comfortable grip even in wet conditions or while wearing gloves, let you easily adjust the angle. Phone Holder, Adjustable Cell Phone Mount & Camera Mount, with 2 1" Screwball Track Mount for Kayaks and Boat, Secure Kayak Phone Holder for Fishing with Traction spring and silicone fixing sleeve, Fits GearTrac & Track Systems