BKK's Spear 21-UVO Treble has been developed for deep freshwater applications to enable anglers to fish in a wide variety of low light conditions, especially deep and dark water, allowing predator species to see the bait or bait . BKK's Orange Ultra Violet (UV) paint provides high contrast, visibility and glows when UV light is available in the water column. UV light can penetrate much deeper into the water than visible light. In addition, the hook is provided with a round bend and fine wire (1x) that allows a fast and deep penetration.