Check the listing for details. Zebra Hybrid Bowstring 19 3/8 -SUB 1 XR Black/Black. Color: Black, Condition: New with tags. Listed at 19.95 USD. The Zebra Hybrid Bowstring 19 3/8SUB-1 XR in Black/Black is a high-quality accessory for archery enthusiasts. Made by the reputable brand Zebra Hybrid, this bowstring boasts a sleek black color and features a SUB-1 XR model specifically designed for optimal performance in outdoor sports. With precise measurements and durable construction, this product is a reliable choice for enhancing your archery experience.