30 mm series
Browse our category "Series 30 mm" to find all the blocks of Ronstan, 30 mm that we deal in our shop. There are two versions: the Orbit and the Utlity. Everything you need for the boat can be found on our website at www.adriamarine.net or at our Adria Marine shop. Over 10,000 products for boating in the catalog. Fast shipping throughout Italy and the world.
Their precision design provides the optimum number of ball bearings to reduce friction to a minimum, while the weight reduction is achieved through the use of composite materials reinforced with fibres in the head of the block, in the arms of the cleat and becket.