Specification Packing: 1 Material: Stainless Steel, Brass Dimensions: Length 14cm/5.5, Handle Length: 4.5cm/1.77 Sturdy, durable, not easy to fade, long service life. Quick and easy threading of the spool saves yourself time by eliminating the frustration of trying to thread manually. Easy to use: just thread the threader through the bobbin tube. Then thread the thread through the oversized thread and pull the thread through the bobbin. yourself from the hassle of being tied up. Thread spools quickly and easily with this practical flying lead tying tool.