I am also listing this on other platforms, so please confirm availability in the comment section before purchasing. Delivered as a set of 2. I'm not sure of the New Balance size, but they seem to be about the same size, so I think they are around 12cm... They are being sold together. Please take a look at my other listings as well. I also have other items for sale, such as summer baby clothes (boys 70, 80, girls 80, 90, 100), bibs (some unused), baby carrier cape, swaddles (boys, girls), toys, and Rady (adult). ★100 yen off for followers. (Please comment. I will change the price.) ★For those requesting combined shipping... Depending on the item, it may not fit in one box, and if the box becomes too large, I may not be able to approve the requested price, so please comment first. m(*_ _)m ⚠️Notes on transactions⚠️ ・I have a 4-year-old and a 2-year-old, so I have allowed extra time for shipping. I will ship as soon as possible. ・Please purchase only if you understand that these are used items. Please forgive any minor dust, etc., as they have been stored at home. There are no smokers in the household. ・I inspect the items, but there may be oversight of scratches or stains. ・Please forgive any wrinkles due to storage or packaging. (I may compress items to reduce thickness.) ・Some items have had the names removed because they were given to me.