Making this mobile with my 12-year old was fun! We found the tubing was too loose (alone) to suppport the shapes as the mobile hung over time. So, we lined every piece of tubing with the filament line for hanging the mobile, and that seems to have fixed the problem.
Small Good Things Blue Polygon Mobile
Create your own stunning blue modern mobile with this charming polygon mobile kit! Made of sturdy cardstock, stainless steel rod, and nylon string. Hangs approximately 15" tall by 18" wide. Assembly required. Includes complete assembly instructions. Designed and made in Korea.