Item Type: Shuttle Bobbin Case Product Material: Stainless Steel Product Specifications: 2 Product Use:For Sewing Machine Accessories Scope of Application:For Household Sewing Machines Length:Approx. 5cm / 2.0in Width: Approx. 1.2cm / 0.5in Package List 2 x Shuttle Bobbin Case 1Automatic Trimming Thread : Multifunctional bobbin can automatically trim threads at high speed, which is very efficient and convenient. 2Quick Stop: The shuttle bobbin case stops spinning quickly, preventing the bobbin thread from unraveling or tangling when the sewing operation stops and starts. 32 Pcs: A set has 2 sewing machine bobbin cases, which can meet the daily needs of the sewing machine. 4Lightweight Portable: The sewing bobbin case is reasonably sized and lightweight for easy storage and portability. 5Stainless Steel Material: Shuttle obbin case is made of stainless steel material, which is rustproof, corrosion resistant and durable.