Sufficient quantity: Each set includes 25 metal spools, meeting your daily sewing needs. Easy to store: Packaged in a transparent plastic box, each spool has a designated slot, keeping them organized, accessible, dust-proof, and protected from loss. Quality material: Made from high-quality metal, these spools are durable, practical, and reusable. The polished surface and edges ensure smooth operation without damaging threads or scratching skin. Dimensions: Outer diameter: 0.8 IN, inner diameter: 0.24 IN, outer width: 0.4 IN, inner width: 0.39 IN. Please verify the dimensions to ensure compatibility with your sewing machine. Wide Application: Designed to fit most home embroidery and sewing machines, making it an ideal gift for sewing enthusiasts, beginners, or loved ones.