Berkley® Big Game 100% Fluorocarbon Leader Material Berkley ProSpec is a Professional Grade, 100% Fluorocarbon leader material. Specified and approved by Professional Captains and Guides. Available in clear and in special tints to match different water conditions PROFESSIONAL GRADE 100% FLUOROCARBON LEADERS SPECIFIED BY THE PROS
- Near invisibility
- High Abrasion resistance
- Strength
- Dependability
- Easy to tie on mainline