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!
Series 20 BB Orbit Block™ Lashing Head User Instructions
N.B. Block must be lashed through hub. M.W.L. & B.L. are dependent on the strength of lashing. Knots, splices, stitching will generally have a lower B.L. than the line itself.