Yarn Storage Products Large Yarn Bobbins Spool Thread Knitting Sewing Crochet Weave Tools Craft 1 Sets of 20 Pcs Random Color Material: Plastic Colors: Yellow or Purple or Green Approximate width of yarn bobbin: 2" Approximate height of the bobbin: 4 1/4" Package included: 1 Sets of 20 Pcs Large Yarn Bobbins (Colors sent randomly )