1. Material: copper/stainless steel 2. Unobstructed launching, anti-corrosion and durable, convenient disassembly and assembly 3. Complete accessories, easy installation, standard interface, wide applicability 4. With tight threads, the combination is tighter, compressive and explosion-proof, and not easy to rust 5. Description: for basins without overflow holes, choose a non-hole drain, and for basins with overflow holes, choose a hole drain. 6. Weight: about 150 grams 7. Packing size: about 21x7x7.5 cm