Ronstan Series 20 Ball Bearing Orbit Block - Single - Dyneema Lashing - Becket OptionSeries 20 Ball Bearing Orbit Block Single Dyneema Lashing Becket Option The incredible Series 20 Orbit Block is capable of loads up to 250kg (550lb) while weighing a mere 9 grams. It's so light that it needs to be lashed down! Features: Integrated stainless steel hub to accept lashing attachment and through sheave becket Suits up to 4mm(5 32") lashing Includes 750mm (30") x 1. 7mm(1 16") diam lashing Applications: Control lines on dinghies and