Marlow Excel D12 4mm 12 Strand Dyneema SK75 Benefits Lightweight – reduces on-board weight. Very strong – excellent for lashing and for metal shackle replacement Minimal stretch - keeps rig taught and perfectly set Marlow ArmourCoat, increases the life of the rope by reducing UV and abrasion fatigue. Does not absorb water so floats and remains light weight when sailing. Quick and easy to splice, less time preparing the boat more time on the water. Uses Trapeze Lines, Purchase Systems and Halyards.