Item Type: Bobbin Holder Material: Rubber Specification: 1 Piece Usage: Household, Storage, etc. Application Scope: Most People Outer Rope Diameter: Approx. 133mm / 5.2in Inner Rope Diameter: Approx. 80mm / 3.1in Height: Approx.20mm / 0.8in (Manual measurement has 1-2cm error) Package List 1 x Bobbin Holder 1The spool protection rope can organize the spool well and prevent the thread on the spool from spreading or tangling, thus saving space. 2Made of highquality rubber, the spool holder is soft and elastic. It is not easy to damage and can organize the bobbin well. 3Easy to remove a bobbin by hand, no unwind for thread. Our bobbin storage prevents the bobbin thread from loosening or deforming .. 4The bobbin organizer is in a rope, and the bobbin organizer is colorful and bright, beautiful and practical to use. 5With wide range of applications, the sewing machine bobbin holders can be used for most brands of metal or plastic sewing machine bobbin.