Orvis Mirage Fluorocarbon Big Game 9' Knotless Leaders (2 pack) Boots Pro Depth Charge is a

Pro Depth Charge is a triple-density sinking fly line designed with different levels of sink to eliminate the hinge effect in the line for better strike detection and line feel

and it also goes over basic tool instructions

Basic Tying Tool Set includes five different tools that will allow you to tie virtually any pattern

From big stripers in the rips to tarpon on the flats

Orvis Mirage Fluorocarbon Big Game 9' Knotless Leaders (2 pack) Boots Pro Depth Charge is aPure fluorocarbon Mirage, is the result of patented extrusion taper technology, an Orvis exclusive, has the highest abrasion resistance of any leader or tippet. Its refractive index is so close to that of water that Mirage is virtually invisible.