100% Natural, Fluoro Water Soluble Foam. Perfect Presentation Water Soluble Foam dissolves completely, leaving no residue. Plus, being made from 100% natural products, it's completely safe. After casting, Perfect Presentation Water Soluble Foam suspends your hooklink and bait above any bottom weed, leaf mould, debris etc. Plus, it keeps the hooklink straight in the cast, eliminating tangles and preventing the hair wrapping around the hook. It dissolves in less than a minute (winter and summer), allowing you time to pull back to find features without fear of damaging your hook-point or your presentation.