This fitting set is made of , which can withstand use. Features the steel and iron material, which has high durability, not easy to deform. Fine workmanship, ensures practicality. This fitting set will make DIY furniture easier and smoother. Features -Color:Black -Material:Steel, iron -Size:4.30X3.50X2.80cm/1.69X1.38X1.10in Connector: DN15 - It can be used in furniture, greenhouse shed, tent frame and other DIY projects. - Made of premium steel and iron material, this accessory is able to withstand impact without breaking or breaking easily. - Simple installation, easy to use for beginner or professional, allow you to arrange in a orderly and stable way. - Lightweight and easy to install. The surface of the product is smooth without burrs and does not scratch your hands. - workmanship, reasonable structure, professional and practical, can bring you convenience. Package list: 30 x elbow fittings 30 x tee fittings