Superior Quality Hemline Machine Bobbins Suitable For Most Domestic Sewing Machines The Must Have Accessory Perfect For The Starter & Professional Alike All 16 Types & Sizes Available For Brands Such As Singer, Husqvarna, Viking, Pfaff, Concave, 7 & 8 Hole Bernina, Janome, New Home, Industrial, Standard & Vertical Load Please See Picture Guide For Item Specifics For Each Type, Including Core Size & Material Type (Metal / Plastic) To Suit Your Machine Please See Store For Full Range