Aluminum track for hanging curtains, balancers, hand tools, electrical cables, etc. The advantage of the aluminum track is that it has a greater distance between the mounting points. Used for suspension from high ceilings.
Clarifying illustration:
G: 112170105 Aluminum track
H:112170204 Aluminum track,90° bend
I:112170501 Wall bracket for aluminum track (swivel)
J:112170600 Ceiling bracket for aluminum track
K: 112170402 End cap for aluminum track
L: 112170303 Aluminum coupler
M:81071201End stop for track
N: 920163 1-axle trolley
O: 9201672-axle trolley
P: 242690204 S-hook
Q: 81071706 Pull rope with ball
R: 81071805 Suspension strap
S:112171103 Adjustable ceiling pendant for track