Series 20 Ball Bearing Block - Double - 2-Axis Shackle HeadFeatures:Low frictionHigh static and dynamic load capacityLightweightPrecision molded Acetal sheaves running on stainless steel or Torlon ball bearings provide high performance & low frictionTwo-Way head can be fixed at 0° or 90°Applications:Dinghy control linesDinghy vangsCunninghamsTraveller controlsMaterials:Stainless steel ball bearingsUV Stabilized Acetal sheaveGrade 316 stainless steel load strap and head fittingImpact and UV resistant, fiber reinforced Nylon cheeksSpecifications:Sheave Ø:20mm(3/4")Max. Rope Ø:6mm(1/4")PinØ: 4mm(5/32").:350kg(770lbs)B. L.:700kg(1,540lbs)Weight:42g() Ronstan series 20 bb block double MODEL NO - RF20202