Features: 1.High speed automatic cutting thread, it is very efficient and convenient. 2.Made of high quality metal, durable and anti-corrosion. 3.Bobbins stop spinning faster, preventing unraveling or tangling of bobbin thread when sewing operations stop and start. 4.Easy to use and store, very convenient. 5.Compatible for singer model: 27-1 27-2 27-3 27-4 27K-1 27K-2 27K-3 27K-4 28-1 28-2 28-3 28-4 28-8 28-9 28K1 28K2 28K3 28K4 127-3 (MOST) 127-12 (MOST) 127K (MOST) 127K3 (MOST) 127K4 (MOST) 128-3 (MOST) 128-4 (MOST) 128-8 (MOST) 128-12 (MOST) 128-13 (MOST) specification: High speed automatic cutting thread, it is very efficient and convenient. Made of high quality metal, durable and anti-corrosion. Bobbins stop spinning faster, preventing unraveling or tangling of bobbin thread when sewing operations stop and start. Easy to use and store, very convenient. Compatible for singer model: 27-1 27-2 27-3 27-4 27K-1 27K-2 27K-3 27K-4 28-1 28-2 28-3 28-4 28-8 28-9 28K1 28K2 28K3 28K4 127-3 (MOST) 127-12 (MOST) 127K (MOST) 127K3 (MOST) 127K4 (MOST) 128-3 (MOST) 128-4 (MOST) 128-8 (MOST) 128-12 (MOST) 128-13 (MOST) 128-18 (MOST) 128-23 (MOST) 128K (MOST) 128K3 (MOST) 128K4 (MOST). : Material: Metal Color: Shown as Picture Part Number: 83505(Shuttle Case), 8228(Shuttle Bobbin) Applicable Model: (as follow) Suitable for singer model: 27-1 27-2 27-3 27-4 27K-1 27K-2 27K-3 27K-4 28-1 28-2 28-3 28-4 28-8 28-9 28K1 28K2 28K3 28K4 127-3 (MOST) 127-12 (MOST) 127K (MOST) 127K3 (MOST) 127K4 (MOST) 128-3 (MOST) 128-4 (MOST) 128-8 (MOST) 128-12 (MOST) 128-13 (MOST) 128-18 (MOST) 128-23 (MOST) 128K (MOST) 128K3 (MOST) 128K4 (MOST). Package list: 1 x Shuttle Case 5 x Shuttle Bobbin Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.