Truly universal plug, patented zig zag expansion which fixes into any wall, ceiling or floor., Suitable for Concrete, Brickwork, Stone, Blockwork, Plasterboard, Tiled Walls, Unique design with expansion throughout the length of the plug, Expands at the top giving instant grip, Instant grip & anti rotation fins prevent spinning in the hole, Covering 80% of all DIY fixing applications the UNO is the complete light to medium weight fixing solution