Precises Fit & Stability: Each connector measures 21×21mm externally, ensuring a snug fit for 25mm square tubes to enhances joint strength and overall frame stability Sturdy Construction: Made from durability black, these connectors resist wear and outdoor exposure, ensuring reliability in homes storage, garden frames, and workshop builds Versatile Applications: Ideal for handrails, shelves, garden fences, display racks, plant stands, and customs home projects, suitable for both temporary setups and permanent installations Complete 8 Piece Set: Includes eight robust three way side outlet elbow connectors, providing ample quantity for assembling new structures or replacing worn fittings in various projects Simple Assembly: Designed for easy insertion into 1 inch (25mm) square tubes without screws or tools, enabling setup and disassembly for efficient projects, Manufacturer: Tsophreniq