Strong enough. Super power strands braided lines allow you to easily tie a more solid knot. Longer casting distance and durability. Great abrasion resistance. This braided fishing line kit decreases the likelihood of losing your best tool using in fishing, freshwater or saltwater, surf fishing, ice fishing, trout fishing or bass fishing. Feature - Color: Grey. - Material: PE. - Size: About 6.8 x 6.8 x 6.3cm;300M (Length). - Wire Diameter: 0.5mm. - Tension Value: 40.2KG. - Ultra-strong,ultimate strength: this braided fishing line is composed of Ultra High Molecular Weight Polyethylene Fiber, manufactured to the highest quality standards. - The advanced 4 braided construction boasts ultrasensitivity that detects light bites and has low memory for outstanding castability and handling, and the 4 Strands line holds up tight allow you to easily tie a more solid knot. - Highly sensitivity and zero stretch fishing wire: zero stretch creates a line with highly sensitivity and extremely low memory. - This braided fishing thread are superior abrasion resistance, ultra sensitive with near zero stretch, low memory and thin diameter for easy casting and handling. - The extra-small diameter and enhanced color protection help with finesse presentations and keep it hidden from fish in the long term.