Sisal Rope is great for moderate tying applications. Sisal rope is economical, biodegradable, and pliable. Rope has a rough texture which provides a firm grip and holds knots well. Sisal is a natural fiber that deteriorates quickly when exposed to weather. Excellent for homes, farms, nurseries, camping and utility use. 1/4" diameter.' per roll. 385 lb tensile strength. 50 safe load.