■ Left Side Mahouno Okurumi - Size: L - Material: 100% Cotton (Mesh & Waffle) - Design: Snacks - Double zipper, hand-out type ■ Right Side Aikuruc Hagurumi - Size: M - Material: 100% Cotton - Design: Plain Gray - Double zipper (hands cannot come out) ● I used these for about a month last year around this time for my then 4-month-old, large-sized son. He seemed to calm down and slept well, and I found it useful for nighttime feedings because I could nurse him while he was swaddled, which was helpful since his cold hands used to bother me. ● The sizes are M and L, but as you can see in the first photo, the sizes are almost the same. ● Please be aware that with size M, the hands cannot come out, so be careful for babies who roll over during sleep. Thank you for looking.