Rio Powerflex Tippet Guide Spool 75yd skagit nylon-coated wire for sharp-toothed critters

nylon-coated wire for sharp-toothed critters like Pike

but it is extruded over a blue-tinted monofilament core

and it also goes over basic tool instructions

A thinner core gives the line a smaller diameter-to-mass ratio without skewing its specific gravity or killing energy transfer

as this is done in the design

Rio Powerflex Tippet Guide Spool 75yd skagit nylon-coated wire for sharp-toothed crittersHigh tenacity copolymer with excellent knot strength ideal for trout. The RIO Powerflex Tippet Guide Spool is made from a a high tech co polymer material, giving it excellent knot strength. A PTFE coating protects from abrasion, while giving it elongation (stretch) properties that average about 26%. Availabe from 7X to 0X, the Powerflex is perfect for all species. Its light grey color provides superb camouflage in the water.