Due to shipping costs, I'm only selling these as a set. This includes the Away Rattle and the Anywhere Gym Merry. I used to attach them to the stroller and car seat. I once attached it without aligning the direction properly, and as a result, there are indentations on both sides as shown in the fifth photo. It can still be used without any problems. The rattle can be washed. I wash it with Sarasa detergent.