Other, of circular cross-section

Dimensions of the regulators:

1) Width 20 mm, height 15 mm, wire thickness 3 mm.

(2) Width 25 mm, height 20 mm, wire thickness 3 mm.

(3) Width 30 mm, height 15 mm, wire thickness 3 mm.

(4) 35 mm wide, 15 m high, 3 mm wire thick.

The color is black.