The extension must be factory attached and consists of a guide rail system formed of 38 mm x 38 mm x 6 mm (1.5" x 1.5" x 0.25") thick aluminum angles into which an ultra-strong extension will fit. The posts of the extension are made of 50 mm x 12.5 mm (2" x 0.5") thick aluminum plates. The anti-slip bars are made of 19 mm x 22 mm (0.75" x 0.87") solid core aluminum. The safety extension includes an anchoring system as well as a lifting handle.
