The Spomb X Pro Mono is a low-diameter monofilament line designed specifically for Spombing, featuring a bright red color that provides high visibility. Its unique design reduces bowing in the line caused by crosswinds, minimizing frap-ups and wind knots compared to braided lines. Additionally, it can be used as a "stretch leader" to connect low-diameter braid mainline to heavy braided leaders, helping to prevent crack-offs when using low-diameter braids like Spomb XD Braid.