I don't remember when I purchased it, but it's been quite a while. I don't remember opening it. Please judge the condition based on the measurements from a household scale, shown in the photos. Thank you for your consideration. Shampoo cleaning for carpets, creating foam. With its powerful cleaning ability, excellent foaming, and rinsing properties, you can efficiently shampoo clean. It can be used safely on nylon and wool materials. Form: Liquid Usage: Diluted solution 250ml/㎡ Concentration: 20-30 times dilution