> Fixed height/rigid
Type H-4057; fixed height; design according to DIN.
Type H-4057P; fixed height; pavement design.
Type M-4057; fixed height; Futura design.
Type M-4057P; fixed height; Futura pavement design.
Type M-4057H; fixed height; Futura hexagonal design.
> Height adjustable/telescopic
Type H-4057V; height adjustable; design according to DIN.
Type H-4057VF; height adjustable with reinforced rim.
Type H-4057VG; height adjustable with metal reinforced rim.
Type H-4057VB; height adjustable with reinforced rim.
Type H-4057VP; height adjustable with square top.
Type H-4057VH; height adjustable with hexagonal top.