Number of layers (specification):

Black armrest with pulley-3 layers and 2 heightening (free hook)

Black armrest with pulley-4 layers two heightening (free hook)

Black armrest with pulley-4 layers three heightening (free hook)

Black armrest with pulley-5 layers two heightening (free hook)

Black armrest with pulley-5 layers three heightening (free hook)

Black armrest with pulley-6 layers two heightening (free hook)

Black armrest with pulley-6 layers three heightening (free hook)

Black armrest with pulley-2-layer heightening (free hook)

White armrest with pulley-3 layers and 2 heightening (free hook)

White armrest with pulley-4 layers two heightening (free hook)

White armrest with pulley-4 layers three heightening (free hook)

White armrest with pulley-5 layers two heightening (free hook)

White armrest with pulley-5 layers three heightening (free hook)

White armrest with pulley-6 layers two heightening (free hook)

White armrest with pulley-6 layers three heightening (free hook)

White armrest with pulley-2-layer heightening (free hook)

Black armrest-3 layers and 2 heightening (free hook)

Black armrest-4-layer two heightening (free hook)

Black armrest-4 layers three heightening (free hook)

Black armrest-5 layers two heightening (free hook)

Black armrest-5 layers three heightening (free hook)

Black armrest-6-layer two heightening (free hook)

Black armrest-6 layers three heightening (free hook)

Black armrest-2-layer heightening (free hook)

Black armrest-2 layers (free hook)

White armrest-3 layers and 2 heightening (free hook)

White armrest-4-layer two heightening (free hook)

White armrest-4 layers three heightening (free hook)

White armrest-5 layers two heightening (free hook)

White armrest-5 layers three heightening (free hook)

White armrest-6-layer two heightening (free hook)

White armrest-6 layers three heightening (free hook)

White armrest-2-layer heightening (free hook)