Toilet Flush Button Kit: You can get a standard two-piece toilet flush button and a dual flush one.The dual-press toilet flush button is compatible with most bathroom dual-tank toilets or tanks.Universal dimensions: diameter: 38 mm.The toilet flush button can be compatible with holes from 38mm to 43MM.Please check your toilet lid hole size before ordering.Durable material: The dual flush toilet button is made of engineering ABS plastic, the button surface is chrome plated, not easy to age, corrosion resistant and wear resistant.No leaks, no jamming.Our toilet tank knobs feature durable stainless steel springs.Easy to install: This universal toilet flush button replacement is very easy to install.Simply tighten the screws by hand to properly flush the toilet again.No need to use other tools.Save time and effort.Product Application: Compatible with most dual flush toilets, suitable for toilet lids with 38 - 43mm button hole, can shorten the stem to adjust to the tank height if necessary.The toilet flush button is the accessory you need for your home office store.