These are ornament balls knitted from cotton yarn, with craft cotton inside. Diameter: Approximately 3.5cm Weight: 3g-4g (per ball) Perfect for Christmas tree ornaments, garlands, and more. Please note that the color may appear slightly different depending on the shooting environment. The dark-colored balls are navy blue. As these are handmade items, there may be some irregularities in the stitches and shape. Thank you for your understanding. They will be slightly compressed for shipping, so please reshape them upon arrival.