Durable silicone construction Made from flexible silicone that resists damage and deformation, so clips hold their shape through repeated daily use. Soft material protects delicate threads and prevents snags. Keeps spools and bobbins tidy Prevents thread unwinding, tangles, and loose ends during storage, transport, or work sessions. Use one clip per spool or combine several clips for larger spools to secure excess thread. Versatile compatibility Designed to fit a wide range of spools and bobbins—small or large diameters commonly used for home sewing and embroidery. Can be used together or separately depending on spool size and how much thread you need to secure. Pack and colors Includes 40 silicone bobbin/bobbinholder clips in assorted colors (including red, blue, green, yellow). Large quantity is convenient for multiple projects, thread organizers, or classroom use; color variety helps with quick identification. Practical performance Lightweight, travelfriendly, and easy to attach or remove. Reusable and easy to clean. Typical applications Home sewing: Keep bobbins and thread spools organized in drawers or storage boxes and prevent tangles between projects. Embroidery & quilting: Secure specialty threads and floss to maintain color and avoid waste. Portable kits & classes: Pack spools safely for travel to sewing groups, workshops, or classes without loose thread. What you get 40 silicone bobbin/spool clips in assorted colors, suitable for daily sewing and embroidery use.