Ø 20 mm steel tube cover, adjustable continuous position, position fixed by a locking pin, movable housing, Batyline®, this fabric allows the manufacture of items specially designed for swimming pools.cially designed for swimming pools, with excellent resistance to UV rays, a fongicide impregnation and an aerated fabric to allow the water to evaporate.Batyline® fabric is particularly resistant to dirt, does not deform and is easy to clean, labelled Oeko-Tex® quality (Oeko-Tex® quality control).Oeko-Tex® quality label (control of textiles for non-toxic substances), suspension and fixing of the casing with a certified clip system, protection for the floor and protection of the floor for high stability.