These are handmade rings (hoops) that I made to allow for at-home rhythm lessons, inspired by my time at Baby Park. The size is approximately 27-28cm in diameter and about 1cm thick. I can accommodate requests for different sizes, so please feel free to ask. The model number of the tubing used may be listed. They will be folded for shipping, but will return to their circular shape if hung overnight after opening. Made when my child was 0 years old, they are made sturdy to prevent the beads inside from coming out. However, for safety, please do not leave your child unattended while using them. If you have specific color requests for the beads, I can make them to order, so please comment to discuss. Currently, I can make them with a combination of the following colors: white, yellow, orange, red, pink, purple, blue, light blue, and green (choose 3 colors from 9). If you purchase two or more, I will choose one of the three colors for you, and I will offer a discount if the beads are slightly fewer. Update 2023/12/07: Regarding the frequently requested sponge filling, it is difficult to shape the rings with sponge, and it takes more time to make them, so this will not be eligible for a discount. Update 2024/12/05: Regarding the larger size, which is also frequently requested, the tubing diameter is small, so if I make a larger size, it may sag or become slightly flimsy due to its own weight, as noted by a certain early childhood education school. Please be aware of this. #BabyPark #ShichidaMethod #Copel #RhythmicMovement #NurserySchool #Kindergarten #MusicSchool #ParentingCircle Update 2023/6/1: The ones I made when my daughter was 0 years old are still going strong at age 4. They can withstand a rambunctious 4-year-old pulling, bending, and throwing them.