Package comes with 50 spools. Dimensions: 3.35 x 3.94 x 0.39 inches. Made of sturdy kraft paper cardboard. Thick, durable and not easy to deform. Easy to store hundreds of yards of ribbons in small room with these spools. Works well with different kinds of fabric ribbons, silk ribbon, satin ribbon, christmas ribbon, plaid ribbon, cotton floss, twine and lace, ribbon for wreath making, fall wired ribbon, christmas wired ribbon lace ribbon. These yarn bobbins are good for sewing crafts, embroidery, DIY crafts or other work, helping to keep the thread neat and keep storage tidy. Also, great for crafting embellishments, gift tags, wedding, baby shower, party, scrapbook, jewelry display and your special craft programs. The clip on one side is designed to keep the ribbon or thread well twined. The cardboard holder is cut clean without fuzzy frayed edges. Prevent from tangling and save much space in your ribbon organizer, craft storage cabinet, craft storage bin, wrapping paper organizer, gift wrap organizer storage, ribbon rack, ribbon holder.