Fits any base material solid or hollow, anti rotation features. Truly universal plug which fixes into any base material, solid or hollow. Unique geometry guarantees maximum expansion and grip. Recommended for unknown substrates and exploited holes. Anti-rotation features prevent spinning in the hole. 100% assurance of proper anchoring derived from unique split design of the plug. Lip prevents plug slipping into over-sized holes. Suitable for using in concrete, brickwork, stone, blockwork, plasterboard, etc. Fixes into any wall, ceiling or floor. Anti-rotation technology prevents spinning in the hole. Expansion possible throughout the length of the plug. Instant grip. Suitable for exploited holes. Small length - successful use in thin walls. Anti-slip in oversized holes.