Made of high-strength aluminium alloy for improved durability, can be used for a long time. Suitable for indoor and outdoor structural applications, including garden sheds and fences. Ideal for forming vertical joints in fence railings, greenhouse frames, shed supports or furniture structures. Slide the square tube into the joint and secure it with screws. Smooth interior fit ensures firm grip and balanced across all three outlets in your tubular frame or furniture project. Great connectors for building lightweight shelves, pet enclosures, chair frames, dividers or reinforcing chain link fence structures., Manufacturer: ordinarYone