Series 20 Ball Bearing Orbit Block - Single - Dyneema Lashing - Becket OptionThe incredible Series 20 Orbit Block(TM) 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 becketSuits up to 4mm(5/32) lashingIncludes 750mm (30) x 1.7mm(1/16) diam lashingApplications:Control lines on dinghies and catamarans to 5M(16')Materials:Sheave: High compression strength carbon acetalBall bearings: stainless steelFrame/Cheeks: Nylon