Product Material: Stainless steel. Size: 47 mm screw, 45 mm rubber base, 27 x 45 mm replacement hinge. Color: Black. Quantity: 1 pair. Package content: 2 expansion screws. 1. Stainless steel hinge: High-quality stainless steel construction with full piston design, offering excellent toughness, stability, corrosion resistance, and no deformation. The smooth stainless steel surface is simple and elegant. 2. Dimensions: Replacement hardware set for toilet seat includes 47 mm screws, 45 mm rubber base, 27 x 45 mm replacement hinges, 45 mm stainless steel cover, and matching 45 mm rubber anti-slip pads. 3. Easy to install: Universal stainless steel screws allow for simple installation. Once installed, the toilet seat remains secure and wobble-free. The mounting system is universal and compatible with toilet seats featuring soft-close and quick-release mechanisms. 4. Universal fit: Designed to fit most standard toilet seats with top-mounted hinges. Ideal for DIY repairs and replacements. 5. Easy to clean: Features a round base with one-button installation for added convenience.