The gray pair has been used once and is in good condition. The mustard pair is unused. The size is indicated as 20-21 (11.5~12.0 cm). Recommended for indoor practice and short outings before your child is confidently walking, around 8 to 13 months old! They are machine washable, making them easy to care for and hygienic. I bought them too late and didn't get much use out of them, so I'd like to pass them on to someone who needs them. First shoes, baby socks, 10.5, 11.0, 11.5, 12.0, 12.5, boys, girls, 0-year-olds, 1-year-olds, shoe socks, Korean children's clothing