Standard G 1 ¼" connection, easy installation without tools, completed in just a few steps, perfectly compatible with all commercial washbasins and sinks. High-quality silicone material, soft and durable, with excellent resistance to aging and drying, ensuring superior sealing to effectively prevent leaks. Suitable for sinks with overflow, provides efficient drainage and solves your water drainage issues. Rust-proof, corrosion-resistant, and scratch-resistant, sturdy and durable for long-term, worry-free use. Solid brass compression spring design, offering excellent rebound performance for quick sealing and convenient one-click drainage.