Ryno RPS9 Rubber Support Pad 120mm Diameter, Height 9mm. A 9mm high, non stackable, fixed height pad which provides support for paving slabs on totally flat surfaces such as flat roofs, balconies or terrace areas. These convenient support pads lift the paving off the surface area allowing for better drainage and have vertical spacers to ensure accurate spacing between each slab. They are simple to install and are an easy way to create clear space below the paving. Each paving support can be cut in half or quarters to enable installation around perimeters or protrusions through the roof area. Manufactured from rubber, each pad has increased shock absorbent and acoustic properties. Ryno RPS9 Rubber Support Pads are a convenient solution for patios or any flat surface decking project!