Features:1. RELIABLE QUALITY YOU CAN COUNT ON - Made of durable metal/plastic, and reusable metal sewing machine bobbins, great gift for your buddies2. EASY TO USE - With a winder slot in the center for the rewind, easy to use, essential supplies for your yarns spools. 3. WIDE USAGE - Fits for most domestic sewing machines, and embroidery machines. Perfect for quilting, crocheting, art project, crafters, quilters, upholstery embroidex, standard industrial sewing-machine4. Size - Different size optional(as picture show)Please check the size clearly before you buy. 5. Package include: 2pcs sewing bobbins or 1pcs sewing bobbin case optionalNotice:1. Actual color may be slightly different from the image due to different monitor and light effect. Please allow 1-3cm deviation due to manual measurement.Specification:Material: metal/plasticSize: as picture showPurpose: Household sewing machine/industrial sewing machineincludes:Choice 1:2 x sewing bobbins(not include case)Choice 2:1 x sewing bobbin case(not include bobbin)",