Designed for boats of all sizes, the Harken 1.00 Single Wire Block with Becket features lightweight, low-friction wire blocks for effortless handling of wire halyards and high-strength control lines. With a sheave diameter of 25 mm (1 in), it can accommodate wire diameters up to 2 mm (3/32 in) and lines up to 4 mm (5/32 in). With a maximum working load of 454 kg (1000 lbs) and a breaking load of 907 kg (2000 lbs), this block is a reliable and durable choice for any boating adventure. The shackle pin has a diameter of 5 mm (3/16 in) and the block itself weighs just 35 g (1.25 oz), making it a practical and efficient addition to any vessel.