Bluemoona 10 PCS - Empty Plastic Wire Spools Bobbins ROUND ENDS For Various Size Cord Ribbon (BLACK) Sizes: 80mm(3 1/8") X 80mm(3 1/8" Color: BLACK Material: Plastic Quantity: 10 PCS Use For: Various Size Cord Ribbon, Such As Storing String, Cords, Ropes, Wires, Ribbons, Chain, And Many Other Items.