Dritz 10-Piece Class 66 Bobbins, Plastic 037495473453 Adds lubricity to reduce friction

Adds lubricity to reduce friction in the fuel system

They are designed with bent or offset handles so that whatever is being cut does not have to be lifted off the cutting surface and to ensure that the shears do not harm the cutting surface

Heavy Duty Square Cast Iron Design

High-performance reinforced nonstick coating

Made from aircraft aluminum

Dritz 10-Piece Class 66 Bobbins, Plastic 037495473453 Adds lubricity to reduce frictionBrand Dritz Model 938 Ditz Class 66 Bobbins; 10 Bobbins per package Fits Singer Class 66 models and other sewing machine models using a drop in bobbin Use only the same type (metal or plastic) of bobbin that came with your machine Ditz Class 66 Bobbins. 10 Bobbins per package. Fits Singer Class 66 models and other sewing machine models using a drop in bobbin.