50' length of rope (ideal for 25' flagpole) 5/16" Diameter - Works for many residential poles Made of UV resistant, fast drying braided nylon Halyard is Made in the USA! Comes with a set of two brass flagpole clips Durable White Braided Nylon Flagpole Halyard in 5/16". This rope is marine grade, so it designed to be able to withstand harsh, damp conditions. 2 Brass Swivel Snaps included to attach your flag to the rope. Not sure how much halyard you need? The rule of thumb is twice the height of your flagpole - so if you have a 20' pole you'd want 40' of halyard.