Specifciation: Material: PP; Size: 3.8*3.6cm Color: white; pink; green; blue; transparent; Features: Keep orderly -- Convenient for classifying, these floss bobbins are designed to wind different colored threads and keep threads neat and clean, in case various threads will be in mess, no more messy loose threads around, easy and convenient for classifying. Unique design-- The thread bobbins set comes with floss bobbin winder, hand crank operation, easy and fast accelerating winding thread. There are two thread clips on each white bobbins board to keep the end of the line stuck, and you also can label these with marker pen for easy reference. Made of good quality material, sturdy and durable, not easy to break: Very convenient to handle and stronger than cardboard bobbins, plastic material last longer and can be reused over and over again. Wide application -- You can use these embroidery thread holder set when doing cross stitch, needle craft, embroidery, DIY craft, or other sewing work, making your job more easier. Package include-- Including 100pcs plastic thread card bobbins with 1pc string winder, enough amounts for classifying all the sewing thread. Package List: 100pcs x plastic thread card bobbins 1pc x string winder