3D-printed counterweight. Made of a special material, it's very soft and won't hurt if it hits your body. It also doesn't make much noise when it bumps into a metal yoyo. Attach it as shown in the third image. The bead color may vary. Weight: Approximately 11g Bonus: Please understand this is a yoyo-like item. It's 3D-printed and combines different materials. Diameter: 55mm, Width: 48mm, Weight: 64.8g