UNIVERSAL INTERFACE: Universal 4cm diameter basin plug compatible with all standard drain openings, suitable for bathroom sinks and basins. SEAL AND WATERPROOF: The pop-up sink stopper features a durable rubber sealing ring and four side wings for secure fitment, preventing leaks and blocking unpleasant odors. CORROSION RESISTANCE: Constructed with anti-calcification materials and a protective layer to resist limescale buildup, ensuring long-term performance and durability. QUALITY MATERIALS: Made from sturdy white ABS plastic and chrome-plated brass components, rust-resistant, eco-friendly, and easy to clean for extended service life. PRODUCT SIZE: Brass head with a 4cm diameter, height adjustable between 6.5cm and 9cm. Simple installation design allows secure fitting with drain mechanism and offers flexibility in adjustment. s and precise craftsmanship. – Durable construction resistant to lime and rust corrosion. – Designed to fit standard European main drain openings. – This universal 4cm sink stopper is compatible with most sinks and bidets. PRODUCT DETAILS: Material: High Quality ABS, Rubber, Brass Quantity: 1 PCS Size: 4cm diameter, height adjustable between 6.5cm and 9cm (as shown in image) TIPS: 1. Please verify your existing pop-up drain plug size before purchase. For any inquiries, feel free to reach out. 2. In case of water leakage during use, check and adjust the fixing nut length accordingly. 3. If this product does not meet your needs, browse our store for additional high-quality plumbing accessories.