Tailspar (final support) tree jack for the Skyline.
Mainline hold-up pulley, for keeping the Mainline lifted up near the unloading area: in this way the Mainline does not sag in this zone, leaving it free from hindrances.
Multiple-points anchoring devices with 4 rings (5 trees) for Skyline or with 2 rings (3 trees) for Guylines: for spreading the tension on several trees, it is useful especially in woods with small trees.
Plate for the setup of 3-ropes yarding lines, with 3 shackles: Strawline, Haulback-line and Skyline can be attached to it and thanks to the plate weight they do not twist one with another.