Features 1.Easy to install and use, it is an indispensable part of sewing machines. 2.Reasonable size, light weight, easy to store and carry. 3.Exquisite workmanship, smooth surface and no scratches. 4.Made of high quality metal material, anti-corrosion and high strength for maximum durability. 5.A good sewing machine accessory to make your work more efficient. 6.Exquisite workmanship, replacement for the old or broken bobbin case. Specification Condition: 100% Brand New Item Type: Bobbin Reverse Case Material: Metal Color: As Pictures Shown Size: Approx. 3 x 1.6 x 0.4cm / 1.18 x 0.63 x 0.16in (Diameter x Thickness x Hole Diameter) Applicable Models: For Singer 15-88, 15k88, 15-90, 15-91 sewing machines Package List 2 x Bobbin Reverse Case