A retaining wall ‘SuperPost_120H’ refers to a type of post specifically designed for use in SuperSleeper retaining wall systems. Made of composite materials, and they have a distinctive H-shaped profile. ‘SuperPost_120H’ are installed vertically into the ground typically used for intermediate posts, for walls up to 1000mm in height. They serve as the primary structural support for the wall, helping to stabilise the retaining wall sleepers and prevent soil erosion or collapse.