Material: Band and housing made from ANSI#410 stainless steel. Worm screw made from  S45C.

Special patent structure of this element takes shape with mechanical type,The element with high torsion (60 kg / cm² of 9W, 80kg / cm² of 12W) and high stability.

Special process of the band's brims, no burr, no damage to the hose's surface.