Product Size:135MM x 135MM x 20MM,80MM Diameter.Wide application: Suitable for 20MM Diameter Metal & Plastic Sewing Bobbins. It can storage more than 20 Sewing Bobbins.Simple and Practical: Good Storage Helper, can prevent Needle on the Bobbin from Spreading or Tangling, Save Storage Space.Easy to Carry and Place: the color or type of Sewing Thread can be to keep the table Clean And Tidy.Handmade Good Things: Perfect Gifts for mother, girlfriend and Someone who loves sewing.Color: mixed colorMaterial: siliconePackage Contents:8 x Only the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.