Classic Waxed Thread 8/0 240 Yards is part of the Semperfli 8/0 105 denier range of Classic Waxed Threads (CWT) which have been designed specifically for fly tying for Salmon, Predator, Streamers, nymphs and dry flies usually used on hook sizes 6 to 14. Classic Waxed Thread 8/0 240 Yards threads are unique; laying flat with a two core construction but can easily be split to create dubbing loops and they are strong threads.Specifications and Features: Thickness: 105D 8/0 Material Length: 220m 240 yds Breaking Strain: 0.754kg 26.6oz Material Type: Polyester Product Packaging: Spool Color: Wood Duck