(Measure Your Hole Diameter 3.8cm/1.5in Before Ordering, Size Small) Black toilet flush button, 1 double toilet flush button round head, used for bathroom toilet water tank maintenance

Specification and model: Size: Small size, 3.8cm/1.5in. Please carefully verify the size of your installation holes before purchasing to achieve the best compatibility. Pre installation checklist: Step 1: Measure your tanks installation hole must be 3.8cm/1.5in Step 2: Connect both valve linkages securely Step 3: Test full flush (6L) and half flush (3L) after installation.If it is not applicable, please let me know in time and we will handle your return for free. | Upgraded anti-corrosion material: Made of ABS engineering plastic and 304 stainless steel springs, it has passed 20000 pressure tests and is moisture-proof, corrosion-resistant, rust resistant, durable, and not easily aged. | Precise Leak Prevention System The dual valve linkage structure combined with silicone buffer pad eliminates button jamming problems, eliminates traditional button leakage troubles, and improves flushing response speed by 40%. | Matte black texture aesthetics: The surface adopts scratch resistant and wear-resistant coating technology, with a delicate touch and no fingerprints, suitable for modern minimalist/industrial style bathroom decoration. | Dual level water-saving design: One click switch between full/half flush mode (large flush 6L/small flush 3L), scientifically diverting water to save 30%, in line with bathroom water-saving standards, and reducing household water bills.