outperforming competitors with weaker sealing mechanisms

Its pre-stretched Polyester core keeps this rope firm and round and reduces the tendency to twist

Suits 25mm tube

Maximum working load (lb) 1584 lb

including new techniques and developments in sailing

Ronstan Series 40 Ball Bearing Orbit Block™, Fiddle with Cleat and Dyneema® Link Head RF45521 THINNERS INTERNATIONAL outperforming competitors with weaker sealingLightweight Fiddle block with adjustable cleat FEATURES Ultra Lightweight. Low friction 2 stage Orbital ball bearing system. Highest working load in its class. Low profile and compact. High performance cleating Composite C Cleat and fairlead. Convert to a becket version by adding a Dyneema link. Specifications Product Specifications Type of Block Fiddle Sheave diameter (mm) 40mm B. L. (kg) 700 M. W. L. (kg) 325* Max. Rope diameter (mm) 9 Weight (g)