Used in conjunction with single Clip Lock or Open pipe clips they snap in at the bottom of the clip and effectively lift the clip by 25mm. This allows for lagging to be fitted around the pipe in accordance with byelaws introduced regarding minimum thicknesses of lagging that must be used. Support posts can be stacked to accommodate thicker lagging. Ensure a fixing screw is used that can pass through the pipe clip, the support post and then fully expand the length of the fixing plug.