This is a used item, but the main unit appears to be free of noticeable stains or scratches, and there seem to be no issues with its operation (power-on confirmed). The main unit and soft mat have been wiped with alcohol wipes. The box and instruction manual are also included, but they have some dents, bends, and slight stains. The trial batteries seem to still be usable, so I will send them as they are. [The following is quoted from the manufacturer's official website] Measure feeding amounts and enjoy childcare ・Calculates the feeding amount from the difference in the baby's weight before and after feeding. ・Alleviates the anxiety of mothers who say, "I don't know how much breast milk the baby is drinking." ・The feeding amount can be measured in 1g increments, so you can closely monitor the amount of formula intake. ※ The feeding amount (difference from the previous weight) is displayed in 1g increments for only 5 seconds after pressing the "feeding amount button." Also great for daily weight measurement ・Measures daily weight changes accurately in 5g increments. ・A "soft mat" is included to prevent a cold feeling. ・Weight can be measured in 5g increments up to 8kg and in 10g increments up to 20kg, so it can be used even as the baby grows.