Knitted with cotton yarn. How about using it for interior decoration or handmade parts? Heart size (largest part) Width: Approximately 4-4.5 cm Height: Approximately 3.5 cm Thickness: Approximately 1.5-2 cm ❋ As this is handmade, there may be imperfections. Please understand this before purchasing. ❋ The color may differ slightly between the photo and the actual product.