The Tern is a fast, slightly understable disc that is designed for long shot shaping throws with a flight path that maximizes glide. The Glow Champion Line is made with the same high-tech durable plastic as the Champion Line with the added benefit of glowing in the dark. Glow Champion discs are easily distinguished by their translucent greeish-yellow hue. Highly durable and easy to spot, the Champion Glow Line is perfect for Glow Disc Golf.