GlenDel's 4-sided core is designed with different vital zones, simulating various shot angles. Practice shooting broadside, quartering away and from a 20 feet tree stand at 20 yd, ensuring you're ready for any real-life hunting situation. Open layered PolyFusion technology enhances durability and performance for long lasting use Fusing internal layers to the inner target wall results in more uniform layer compression, making arrow removal effortless and efficient Easier arrow removal reduces shooter fatigue, allowing for extended and more effective practice sessions PolyFusion technology extends target life by securely fusing layers, maintaining structural integrity over time Arrows penetrate between layers to prevent buckling, extending target life and improving longevity Replaceable inserts extend the usability of shooting targets for long term training