Powerful: High capacity bottle can use lasts up to 6 to 15 months or moreFast Acting & Effective: easy to use more effectively by acting for a longer timeSimple and Quick: Just apply in need of a place, wait 3-10 hours, gentle cleaner, without scrubbing, sanding, wire brushingWide Range of Use: Can be used in kitchen sink, bathroom sink, silicone sealant, stainless steel sinks, kitchen and bath tiles, washbasin.Due to platform policy requirements, the product name displayed on the packaging has been standardized as "Home Stain Cleaner". However, the core formula of the product remains unchanged, and its efficacy is consistent with the original specifications. Please use it with confidence.If you have any other questions, please contact us at any time.The internal product’s actual capacity is [4.06 fl oz], 5 fl oz is a reference to the net volume of the packaging container, not the product itself.