Suitable for both indoor and outdoor structural applications including garden sheds and fences Great connectors for constructing lightweight shelving units , pet enclosures , chair frames , partition supports , or reinforcing chain link fence structures : Slide the square tube into the joint and secure with screws Smooth interior fit ensures a firm hold and balanced across all three outlets in your pipe frame or furniture project Made from high strength aluminum alloy for enhanced durability , can be used for a long terms Great for forming clean perpendicular joints in fence railings , greenhouse frames , shed supports , or modularity furniture structures, Manufacturer: ZUJIABAO