Thinking Anglers Tint Link Fluorocarbon Fishing Hooklink, If you're looking for a top quality fluorocarbon hooklink that's both fast sinking and robust, the Thinking Anglers Tint Link is the perfect choice. Made from top grade PVDF Polyvinylidene fluoride, it has a refractive index that makes it virtually invisible underwater. With a 0.45 or 0.50mm diameter, it's perfect for crimping.