Fangrui Product Details Package Contents: You Receive 18pcs Twin Needles Pins(4cm/1.57inch) And 1pcs Needle Threader(7 X 2.5cm/2.75 X 0.98inch) In Plastic Box, You Can See Its Marking In The Blue Area, They Are Compatible With Most Types Of Sewing Machines. Quality Materials: These Double Sewing Needles Are Made Of High Quality Metal, Which Can Help Threading Easier, Save Time And Effort, Rust-proof And , Ensuring That They Can You For A Long Time. Delicate Double-needle Design: Each Of Double Twin Needles Pins Is Equipped With 2 Needles, Which Can Be Easily Passed Through 2 Identical Or Different Decorative Threads, Preventing Skipped Stitches And Holes In Knitted Or Stretch Fabrics And Creating Beautiful Patterns. Convenient Storage: Our Twin Stretch Needles Kit Includes A Small, Easy-to-identify Storage Case That Makes It Easy To Access And Store Before And After Each Use, And Can Be Taken With You Anywhere. Widely Used: These Machine Twin Needles Are Excellent Sewing Machine Accessories For Most Sewing Machines, Can Be Used