Antal Organizers can be groups of 2 to 6 sheaves in 4 diameters of 40, 50, 60 and 70 mm. The 40 and 50 mm sheaves are manufactured in high strength resin with a double side ball bearing. The 60 and 70 mm sheaves are manufactured in aluminium, hard black anodised, with a main composite fibre bearing and 2 side ball bearings. Mounting screws, nuts and washers are included. These new organisers do not disassemble after tacking off the screws.