SIZE - Floor Flange Fits Standard 1/2inch Threaded Pipes and Fittings. NOTE: The Grey Pipe & Fitting series are coated with a rust preventive oil during manufacturing process, you need to clean them and do some anti-rust measures. MATERIAL & PRODUCTS - Grey Pipes and Fittings are designed with a standard industrial; materials and threads constructed from sturdy metal; our products' surface is coated with a rust preventive oil during manufacturing process, and you can seal it after cleaning. HOW TO USE - Unleash Your Creativity and bring chic, industrial style into your home, office,garage, workshop or any other space with fittings and pipes; choose from our large selection of standard, unique and innovative fittings and pipes to create custom furnishings limited only by your imagination. Colour:Black Material:cast iron Size:65x65mm Package Contents: 16 x Flanges Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.