4mm Twin Ballpoint Machine Needle

Schmetz Twin needle suitable for most Sewing Machines 
Ballpoint are for stretch and knit fabrics and could sew woven as well
The size is the width of the channel between the stitch lines.
You will need to add an extra spool of thread and thread your machine with 2 threads
Make sure you split the threads above the needle holder to avoid twisting the thread each needle using our amazing needle threader! Sew from the topside of the garment
You may need to pin press or clip your hem so to keep the stitches on both layers of fabric
Underneath will be a zig zag stitch Sometimes you may need to adjust tension of the needle threads to avoid a bubble