It fits various types of pipes and can be used for shelves in warehouses, supermarkets and home use. Tube clamp connectors, also called tube connectors, are made of aluminum or cast stainless steel or plastic (Polyamide). In general, tube connectors can be divided into the following subgroups: two-way connector clamps, flanged connector clamps, base plate connector clamps, swivel connector clamps and swivel clamp connector joints They are durable and hardly damaged. Heavy-Duty EMT Pipe Connectors for DIY & Industrial Use | Ningbo Reach Hardware Aluminum Hose Fittings Steel Structural Pipe Connectors Adjustable Scaffold Tube Pipe Fittings - Adjustable Pipe DIY Shelf Brackets Made of aluminum alloy, it is easy to install and prevent slippage, with strong clamping force. Create flexible, fast tube assemblies with JW Winco's clamping tube connectors in aluminum, steel, and stainless steel for both inch and metric applications Application scenarios: Suitable for the construction of various types of shelves, such as warehouses, supermarkets and household shelves., Package includes: 2 pieces Function: Connect the shelves pipes tightly.